Merge pull request dotnet/corefx#9686 from dotnet-bot/UpdateDependencies20160626011422

Updating CoreFx dependencies to beta-24226-03

Commit migrated from https://github.com/dotnet/corefx/commit/066f7654e7a06ae065b49e27b700278b5794a523

Updating CoreFx dependencies to beta-24226-03

Commit migrated from https://github.com/dotnet/corefx/commit/6c4ecdb7ce67800d1a7aa3e9192f0bcf12d31a50

Merge pull request dotnet/corefx#9685 from dotnet-bot/UpdateDependencies20160626071549

Updating CoreFx dependencies to beta-24226-02

Commit migrated from https://github.com/dotnet/corefx/commit/fc587b78bb3d9501f58f5cf8349f02e7f93a2fdf

Cleanup some System.Reflection.Emit tests (dotnet/corefx#9520)

* Cleanup AssemblyBuilder tests

* Cleanup ConstructorBuilder tests

* Cleanup EnumBuilder tests

Commit migrated from https://github.com/dotnet/corefx/commit/69a7e2189440d8c9b8fae752156c474c9510a8f5

Merge pull request dotnet/corefx#8953 from hughbe/linq-params

Add a few more parameter names to System.Linq.Expressions exceptions

Commit migrated from https://github.com/dotnet/corefx/commit/c959baeafa54d65dfce53b1214381ed23a31ba29

Update depencies, corefx to 226-02 and coreclr to 226-01

Commit migrated from https://github.com/dotnet/corefx/commit/10ae0d632b8f36458051118e5561f72f4a69b84e

Merge pull request dotnet/corefx#9679 from dotnet-bot/UpdateDependencies20160625011203

Updating CoreFx dependencies to beta-24225-03

Commit migrated from https://github.com/dotnet/corefx/commit/342c3c37de937f1508ed419ff0ffd75aabc080ba

Updating CoreFx dependencies to beta-24225-03

Commit migrated from https://github.com/dotnet/corefx/commit/f61cc53a2f1053118d5270e9ff3b72e2c6624992

Merge pull request dotnet/corefx#9681 from dotnet-bot/UpdateDependencies20160625041236

Updating CoreClr dependencies to beta-24225-03

Commit migrated from https://github.com/dotnet/corefx/commit/bcbbe0483708ed8d5dfa69b9de722e0e53f5aebc

Update CoreCLR package to 1.0.4

Commit migrated from https://github.com/dotnet/corefx/commit/bdef9ca0daef20fee0f9d092a1af01f06fdcedad

Updating CoreClr dependencies to beta-24225-03

Commit migrated from https://github.com/dotnet/corefx/commit/fa5cf781afdaae99c973f78de3c8d020b569de5a

Merge pull request dotnet/corefx#9676 from dotnet-bot/UpdateDependencies20160625071331

Updating CoreFx dependencies to beta-24225-02

Commit migrated from https://github.com/dotnet/corefx/commit/305109aa486405e8b092349cd365fa4b02c1cc8a

Updating CoreFx dependencies to beta-24225-02

Commit migrated from https://github.com/dotnet/corefx/commit/6978404cd54fe063b7482718c6dab979b5011792

Refactor metadata serializers (dotnet/corefx#9588)

* Refactor metadata serializers

* Split file

* Renames

* More API testing and polish

Commit migrated from https://github.com/dotnet/corefx/commit/d03addae82910375f093dc896ce53528ae2ca443

Merge pull request dotnet/corefx#9665 from stephentoub/fix_contentlength

Fix HttpRequestMessage reuse handling in HttpClientHandler on Unix

Commit migrated from https://github.com/dotnet/corefx/commit/313cf2a5c883dd3cc73cb382a465ed2f9f70997c

Merge pull request dotnet/corefx#9668 from dotnet-bot/UpdateDependencies20160624041118

Updating CoreClr dependencies to beta-24224-03

Commit migrated from https://github.com/dotnet/corefx/commit/330a780e2f9e6e1be2d12d23cb48186890eda996

Merge pull request dotnet/corefx#9456 from stephentoub/registry_pal

Introduce a mini-PAL into Microsoft.Win32.Registry

Commit migrated from https://github.com/dotnet/corefx/commit/17e0a681c1ef15da2605b4088cee79f28ef8da8b

Merge pull request dotnet/corefx#9661 from gkhanna79/Fix5837FX

Add DefaultContext fallback validation tests

Commit migrated from https://github.com/dotnet/corefx/commit/18059556263c857b9cb5174699e3c39bdc9fcc39

Merge pull request dotnet/corefx#9667 from stephentoub/update_buildtools

Update buildtools to 524-01

Commit migrated from https://github.com/dotnet/corefx/commit/a9744db98444bd35af4a21066226178578252805

Updating CoreClr dependencies to beta-24224-03

Commit migrated from https://github.com/dotnet/corefx/commit/27ee8e50a790b7975dacd468468e5a2d730a51a8

Merge pull request dotnet/corefx#9663 from dotnet-bot/UpdateDependencies20160624083853

Updating CoreClr dependencies to beta-24224-02

Commit migrated from https://github.com/dotnet/corefx/commit/adf83435b142847789c1b3036ff2907d9cd424ae

Merge pull request dotnet/corefx#9666 from stephentoub/fix_typos

Fix typos in NormalizeString P/Invoke signature

Commit migrated from https://github.com/dotnet/corefx/commit/9e1d5b905e4bbca6b0725a79130a4ee17e45965f

Merge pull request dotnet/corefx#9633 from vancem/DiagnosticSourceAddKeywords

Add keywords for two common event specifications: ASP.NET and SQL

Commit migrated from https://github.com/dotnet/corefx/commit/fe160dcd3d5649a0f51360b674558d95a9007917

Add tests for DefaultContext fallback resolution

Commit migrated from https://github.com/dotnet/corefx/commit/1136c7d89bc63916794f7f95b470c3c5ef124a36

Fix merge conflicts

Commit migrated from https://github.com/dotnet/corefx/commit/d438a14ca18adad326a6bc2c5f9523fb116e477e

Updating CoreClr dependencies to beta-24224-02

Commit migrated from https://github.com/dotnet/corefx/commit/bd5447241a1c900b0be35d1a7ea0f537ed671de7

Update buildtools to 524-01

Commit migrated from https://github.com/dotnet/corefx/commit/b49e51df9b4f8ad36418d297b02f3fabf76e1156

Fix typos in NormalizeString P/Invoke signature

Commit migrated from https://github.com/dotnet/corefx/commit/a0f02a0346f53a50f65b7b36959ce8da64a1509a

Fix HttpRequestMessage reuse handling in HttpClientHandler on Unix

HttpRequestMessages are meant to be used for a single request.  However, that checking is done by HttpClient rather than by HttpClientHandler.  As a result, if code bypasses HttpClient, e.g. by using HttpMessageInvoker or by using a custom HttpMessageHandler sitting between the HttpClient and the HttpClientHandler, the same HttpRequestMessage can be used multiple times without an exception being thrown warning of the invalid usage.  And on Windows, things happen to work, but with our Unix implementation was never expecting this scenario and doesn't work well with it:
- The handler is explicitly disposing of the request content stream rather than leaving that up to the request content's disposal to handle.
- The handler is removing the Content-Length header from the request message content, as a simple way to avoid overriding the Content-Length header that libcurl itself may send based on previous configuration.
- The handler is using ReadAsStreamAsync to get the request stream to send, but ReadAsStreamAsync caches the returned stream, so if the same request message is reused with the same Content, the stream will have already advanced to the end of the stream, and when the message gets reused, we won't have content to send.

This commit fixes that:
- We now don't dispose the request content stream.  That'll be left up to the request content's disposal.
- We now don't remove the ContentLength header from the request message.  We instead just check as we're writing out the headers whether the header is Content-Length, skipping it if it is.
- We now store the original position of a seekable stream that's provided to us, and at the end of the request, rather than disposing of the stream, we rewind to the original position if it exists.  (If the stream isn't seekable, reusing the request message wouldn't be possible anyway.)

This last point also fixes another theoretical issue.  When libcurl wants to go back to the beginning of the stream (e.g. in a redirect scenario where it needs to rewind), it asks us to seek back to the beginning.  We're currently seeking back to the exact position asked for.  But the stream may have come in to us already advanced beyond 0, in which case we need to seek back to the requested offset plus that original position rather than just the requested offset.

And in doing this, I noticed that we were inadvertently allowing a set of closure/delegate allocations due to inadvertently using some captured state in a place where we were trying to avoid that.  I fixed that as well.

We were also marking everything complete before we'd cleaned up all resources, which meant that any failures from such cleanup would go unnoticed.  I've fixed that to ensure we clean up all state before we officially declare the async operation done.

Commit migrated from https://github.com/dotnet/corefx/commit/650cb2698f02635ea69da3ec9637f6ad9e7229c5

Merge pull request dotnet/corefx#9660 from dotnet-bot/UpdateDependencies20160624051755

Updating External dependencies to beta-24224-00

Commit migrated from https://github.com/dotnet/corefx/commit/b129c662158898f38c0bb2726475e68e2ea78f3a

Merge pull request dotnet/corefx#9662 from dotnet-bot/UpdateDependencies20160624071442

Updating CoreFx dependencies to beta-24224-02

Commit migrated from https://github.com/dotnet/corefx/commit/5470ee25a81d50ab2f61dbe428e0c84f25e9397d

Updating CoreFx dependencies to beta-24224-02

Commit migrated from https://github.com/dotnet/corefx/commit/57f7571be7a10ad5c11b5a93a4fcb5f42a656047

Merge pull request dotnet/corefx#9646 from mellinoe/override-init-tools-rid

Allow override of __DOTNET_PKG used for Tools init

Commit migrated from https://github.com/dotnet/corefx/commit/690533bcf454c8005736ce578b505ccbc9dff63e

Updating External dependencies to beta-24224-00

Commit migrated from https://github.com/dotnet/corefx/commit/c43c5e9a6426d446c071fea8d831da97c4608c49

Merge pull request dotnet/corefx#9648 from dotnet-bot/UpdateDependencies20160623100656

Updating CoreFx dependencies to beta-24223-09

Commit migrated from https://github.com/dotnet/corefx/commit/9da7e8b2eb7ee242240872e7d09a92ef865dc278

Updating CoreFx dependencies to beta-24223-09

Commit migrated from https://github.com/dotnet/corefx/commit/7d22459ac2c92ed931dea3e0f90b16351c254e4b

Setting xunit package version from CoreFX (dotnet/corefx#9642)

Commit migrated from https://github.com/dotnet/corefx/commit/3e3f24decf1e13f36e3925656d9e98d6e73a719a

Merge pull request dotnet/corefx#9522 from mconnew/JsonSerializerDateTimePerfFix

Improve performance of DCJS serializing DateTime objects
Fixes dotnet/corefx#9342

Commit migrated from https://github.com/dotnet/corefx/commit/0b0495ef783cd6798cc3ffb1f8a942c7c8c8638a

Allow override of __DOTNET_PKG used for Tools init

* Also, fall back to Ubuntu 14.04 if using an unsupported version.

Commit migrated from https://github.com/dotnet/corefx/commit/8cf7207f5656d4c6e5b75902a119b729d96e0b27

Merge pull request dotnet/corefx#9639 from gkhanna79/Fix5837FX

Add test to validate binding using Resolving event using static binding

Commit migrated from https://github.com/dotnet/corefx/commit/5b054c439a262c0d9b96c7ab01772dd39ce366bb

Merge pull request dotnet/corefx#9638 from ericstj/updateBaselinePackageVersion

Update Microsoft.Private.PackageBaseline to 1.0.1

Commit migrated from https://github.com/dotnet/corefx/commit/3ce8fd68880bc09c46d894054282705810656d39

Minor fixes (removed needless \r, added assert, comments)

Commit migrated from https://github.com/dotnet/corefx/commit/5306ee14763e9b30678cd67f9abb3ba465cf2fa9

Merge pull request dotnet/corefx#9624 from davidsh/null_safehandle

Fix logic with setting response body receive timeout

Commit migrated from https://github.com/dotnet/corefx/commit/8b50545824d7a7f7e7f44b666938f74d2581be7c

Address PR feedback

And additional minor cleanup.

Commit migrated from https://github.com/dotnet/corefx/commit/3ba84a89277b525b069961701f75a58eb5334df1

Introduct a mini-PAL into Microsoft.Win32.Registry

With the expectation that we'll at some point want to make Microsoft.Win32.Registry work on other systems, with a file-system-based simulation of the registry, this commit separates out the shared functionality from the platform-specific functionality, providing placeholders where a file-system-based implementation could be plugged in.

Commit migrated from https://github.com/dotnet/corefx/commit/e36e8cab303fa8aafa5af735bb1b3d58af0e5a52

Merge pull request dotnet/corefx#9614 from ellismg/add-build-id-linker-flag

Pass --build-id=sha1 to linker explicitly

Commit migrated from https://github.com/dotnet/corefx/commit/6e9e499889768d4f17ab1baddf5dd080652e2c33

Merge pull request dotnet/corefx#9625 from dotnet-bot/UpdateDependencies20160623042734

Updating CoreClr dependencies to beta-24223-03

Commit migrated from https://github.com/dotnet/corefx/commit/21e99c99a256e11828a66043a047c046474cce97

Add test to validate binding using Resolving event using static binding

Commit migrated from https://github.com/dotnet/corefx/commit/04c8661e3e4ec98da8cfcbf467523fba471bfdae

Update Microsoft.Private.PackageBaseline to 1.0.1

We stopped publishing this because we didn't increment the version.

Commit migrated from https://github.com/dotnet/corefx/commit/02891b921f4b5c88a8d92398d56204123a2c8f23

Add keywords for two common event specficiations (asp.NET and SQL command).

While this is a nice shortcut, it also have the more importnat effect of allowig older ETW controllers that don't
have support for passing arguments to providers to particpate in the most important events.

Commit migrated from https://github.com/dotnet/corefx/commit/aaca69453594f6cc5718ce09e386e355b6a672d7

Fix logic with setting response body receive timeout

Due to code moving around with PR dotnet/corefx#8996, the `state.RequestHandle` was
already null when trying to set the receive timeout for the response
body. This generated an exception which was caught internally.

This fix moves the setting of the receive timeout so that it has a valid
`state.RequestHandle` to use.

Fixes dotnet/corefx#9578

Commit migrated from https://github.com/dotnet/corefx/commit/5657fdbce9b4c77d486525a40733f872e2f95f1b

Updating CoreClr dependencies to beta-24223-03

Commit migrated from https://github.com/dotnet/corefx/commit/ffb3936af68a238f34de72c220337bb23cfdda4f

Merge pull request dotnet/corefx#9616 from dotnet-bot/UpdateDependencies20160623051816

Updating External dependencies to beta-24223-00

Commit migrated from https://github.com/dotnet/corefx/commit/cc416f8b7b3900fb082d88d480769da4fb5c9d7a

Merge pull request dotnet/corefx#9617 from dotnet-bot/from-tfs

Merge changes from TFS

Commit migrated from https://github.com/dotnet/corefx/commit/37cc76c6fab5bbeb21e017e77ad83752e874e8e9

Merge pull request dotnet/corefx#9546 from yfakariya/dispatchproxy-emit-properties-and-events

Make DispatchProxy declares Property and EventInfos of the interface

Commit migrated from https://github.com/dotnet/corefx/commit/8d2ac6fa9d3f41a83b63b8336133d9253a226c20

Make DispatchProxy declares Property/EventInfos of the interface.

This commit adds code to declare properties and events
to generating proxy type as well.

Note
* Because declaring properties and events requires accessor methods,
  this commit changes AddMethodImpl to return created MethodBuilder.
* This declares EqualityComparer for MethodInfo to avoid reference based
  comparison.
* The test case now uses System.Reflection.Emit to generate the event
  with raise_ method which is not supported in C#.

Commit migrated from https://github.com/dotnet/corefx/commit/e8f650d67a67003786c04b916dc4805678237c0a

Updating External dependencies to beta-24223-00

Commit migrated from https://github.com/dotnet/corefx/commit/386b4d5d9aff596bed8d8ec37d8e4978b50cb09b

Replace source projects with depprojs

Now that we have stable packages we can redistribute the previously
built binaries rather than rebuilding them.

Also cleaning up some unused projects.

[tfs-changeset: 1614403]

Commit migrated from https://github.com/dotnet/corefx/commit/9eb1e7d6939c79459e84651a69c03a11887ff9f5

Merge pull request dotnet/corefx#9622 from dotnet-bot/UpdateDependencies20160623011710

Updating CoreFx dependencies to beta-24223-03

Commit migrated from https://github.com/dotnet/corefx/commit/6c36a16d60f6a4eca9692cbfb697a24341f10184

Update dependenices in InteropServices to 4.2.0

Commit migrated from https://github.com/dotnet/corefx/commit/0963237884ff018380db6a4d5a9da27792ea8088

Update FxCop and Framework Design Guidelines links

Commit migrated from https://github.com/dotnet/corefx/commit/935018d4c6089871c82d66c43482b24cafd3b58a

Updating CoreFx dependencies to beta-24223-03

Commit migrated from https://github.com/dotnet/corefx/commit/de7fe45c006d4079d458e595543189d2b4dad4f2

Merge pull request dotnet/corefx#9619 from dotnet-bot/UpdateDependencies20160623082700

Updating CoreClr dependencies to beta-24223-02

Commit migrated from https://github.com/dotnet/corefx/commit/6fdadbe803c198637f9cb2866d8310664ab121b7

Updating CoreClr dependencies to beta-24223-02

Commit migrated from https://github.com/dotnet/corefx/commit/233c7bbb34ea75440e3b25694fc43123acf183ba

Merge pull request dotnet/corefx#9595 from dotnet-bot/UpdateDependencies20160622081834

Updating CoreClr dependencies to beta-24222-02

Commit migrated from https://github.com/dotnet/corefx/commit/223c9b41099fa2b8ba8c2db5eb4c303ce2842a91

Fix reference to CoreCLR packages

Commit migrated from https://github.com/dotnet/corefx/commit/8ba82df3cb11d84e1719b63599ba164450257ac1

Updating CoreClr dependencies to beta-24222-02

Commit migrated from https://github.com/dotnet/corefx/commit/d7b14074d654799db85feca1535b6d7063751587

Merge pull request dotnet/corefx#9592 from lemmaa/add-makeargs-to-build.sh

Add `makeargs <args>` option to passing extra options to `make`

Commit migrated from https://github.com/dotnet/corefx/commit/ee8f1e7041b15bbd088cfbd05c131a6f0e8adab2

Merge pull request dotnet/corefx#9610 from stephentoub/safebiohandle_lifetime

Fix SafeSslHandle<->SafeBioHandle lifetime management

Commit migrated from https://github.com/dotnet/corefx/commit/d38b101403f62906045b03c8755a74e12157dae9

Merge pull request dotnet/corefx#9612 from stephentoub/move_etw_test

Move Dataflow ETW test into its own process

Commit migrated from https://github.com/dotnet/corefx/commit/56f95c97855f4ad98f5380737d755359a5b81338

Merge pull request dotnet/corefx#9602 from gkhanna79/Fix6889

Add RID for Windows Arm64

Commit migrated from https://github.com/dotnet/corefx/commit/3b1c6990aa62e0673e887cdd9867f35953c3a9ec

Move Dataflow ETW test into its own process

Fixes an issue where if another test accidentally overlaps (e.g. if the test doesn't ensure all queued async operations have completed), ETW events may fire in a way not expected by the tests.

This also eliminates the reason we had disabled parallelism for the suite, so I re-enabled it, which also results in the tests running several seconds faster.

Commit migrated from https://github.com/dotnet/corefx/commit/80072898844934493efbe879c034edf8dbb9caa5

Pass --build-id=sha1 to linker explicitly

On some platforms, a build-id was not being added to native artifacts
and we would like it to be present. Explicitly pass --build-id=sha1 to
the linker.

Related: dotnet/coreclrdotnet/corefx#5796

Commit migrated from https://github.com/dotnet/corefx/commit/72efebeca9e062c4f257125574911df9ce9c8d0c

Merge pull request dotnet/corefx#9609 from dotnet-bot/UpdateDependencies20160622071151

Updating CoreFx dependencies to beta-24222-04

Commit migrated from https://github.com/dotnet/corefx/commit/3ff324e225a884c6de0df5d1b9c6a9cedd557e8b

Address PR feedback, and additional cleanup

Commit migrated from https://github.com/dotnet/corefx/commit/43c7f54f40a095ff71ff2e90a1c620b85b429a77

Fix SafeSslHandle<->SafeBioHandle lifetime management

SafeSslHandles reference two SafeBioHandles, one for reading and one for writing.  The SafeSslHandle represents an underlying SSL structure which via SSL_set_bio has the two BIO pointers represented by those SafeBioHandles stored into it.  Once that happens, the SafeBioHandles no longer "own" the underlying pointers, as instead calling SSL_destroy on the SSL structure will also clean up those BIO handles.  But the lifetime of these handles is not being managed correctly.  The SafeSslHandle is add-ref'ing each of the SafeBioHandles when they're transferred into it; that prevents the SafeBioHandle from closing the underlying handle until the SafeSslHandle is closed, but this is backwards.  We need the SafeBioHandles to keep the SafeSslHandle from being destroyed until the SafeBioHandles are no longer being used.  Otherwise, we can end up in a situation where the SafeBioHandles are passed to some P/Invoke, and while they're being used, the SafeSslHandle is disposed/finalized, destroying the state that the P/Invoke is actively using.

This commit inverts the relationship.  When the SafeBioHandle ownership is transferred to the SafeSslHandle, the SafeBioHandle will no longer attempt to close the underlying handle.  It also add-refs the parent SafeSslHandle, rather than the other way around, so that the SafeSslHandle can't destroy the underlying SSL structure while the SafeBioHandles are being used.

Commit migrated from https://github.com/dotnet/corefx/commit/bd7e9b5a417de5970289a20431d1d75340b4a35a

Updating CoreFx dependencies to beta-24222-04

Commit migrated from https://github.com/dotnet/corefx/commit/c202a00f9b3994ebf2387490f5fec9340820071c

Merge pull request dotnet/corefx#9591 from davmason/master

Update EventSource tests to dispose EventListeners

Commit migrated from https://github.com/dotnet/corefx/commit/44dbc57aa4afea8bc4897bb7a753e94acba1b3f7

Improve performance of DateTime serialization

Commit migrated from https://github.com/dotnet/corefx/commit/3faa05650780f0ea794edaa3ce935dce453bba3d

Add DateTime performance test

Commit migrated from https://github.com/dotnet/corefx/commit/162f06b4fbdb2e2067c4c4e871ccd607b743a765

Merge pull request dotnet/corefx#8607 from tijoytom/master

Updating contracts for new UTF8 string marshalling APIs

Commit migrated from https://github.com/dotnet/corefx/commit/926bdd0e860b9bb4f13e6c562575e59aee2ff9d0

Merge pull request dotnet/corefx#9601 from dotnet-bot/UpdateDependencies20160622010859

Updating CoreFx dependencies to beta-24222-03

Commit migrated from https://github.com/dotnet/corefx/commit/dab51783edcc970f9cfb7d38b12d49fb7ff0fbcb

update EventSource tests to dispose EventListeners

Commit migrated from https://github.com/dotnet/corefx/commit/0392a60f9183607a07ba211ee026565ff9343306

Update S.T.RegularExpressions to version 4.2.0

Commit migrated from https://github.com/dotnet/corefx/commit/9ce507c4f5c570619709c051573fb65d81c63977

Updating contracts for new UTF8 string marshalling APIs

We're adding a new API version which needs to be OOB on desktop.
Ensure we continue to build the 4.6.2 version.
Right now we're lying and saying .NETCoreApp1.0 supports the latest API.
Once we have a netcoreapp1.1/netstandard1.7 we'll need to update to use
that and either redistribute or cross compile for netstandard1.5/
netcoreapp1.0.

Commit migrated from https://github.com/dotnet/corefx/commit/1ba2d172367729f7472324c7197cae02f4796874

Add RID for Windows Arm64

Commit migrated from https://github.com/dotnet/corefx/commit/d341f82a5155006a779ae780e400693cfc8e3393

Updating CoreFx dependencies to beta-24222-03

Commit migrated from https://github.com/dotnet/corefx/commit/087ec74b9e436299974dce655741a3dcc98f5d1c

Merge pull request dotnet/corefx#9593 from dotnet-bot/UpdateDependencies20160622051918

Updating External dependencies to beta-24222-00

Commit migrated from https://github.com/dotnet/corefx/commit/a181783ef0c51da547144d78b81bb07f77923228

Updating External dependencies to beta-24222-00

Commit migrated from https://github.com/dotnet/corefx/commit/90dac98c837b7624a743c7a6c9a0e3a2cf27b504

Merge pull request dotnet/corefx#9586 from Priya91/fixprocess

Add NERR_UserNotFound code to check on netuserdel.

Commit migrated from https://github.com/dotnet/corefx/commit/848e16f42cbce0f7f2f15171fadf065baa6e577a

Add usernotfound code to check on netuserdel.

Commit migrated from https://github.com/dotnet/corefx/commit/f16267c5ebbc0930604074f06ad85680395dd482

Disable SocketOptionNameTest.MulticastInterface_Set_AnyInterface_Succeeds on Fedora 23, while we investigate why this test has been failing. (dotnet/corefx#9580)

Commit migrated from https://github.com/dotnet/corefx/commit/21936668c71cd9e3951f7ab4e9c8ac253ca79d4e

Merge pull request dotnet/corefx#9526 from Priya91/regexgroup

Bring in Group.Name API from future branch, to be supported for net463

Commit migrated from https://github.com/dotnet/corefx/commit/a85d1f1f46f53f2e249d84bef0f2083fc19f1a84

Merge pull request dotnet/corefx#9575 from dotnet-bot/UpdateDependencies20160621062520

Updating CoreFx dependencies to beta-24221-04

Commit migrated from https://github.com/dotnet/corefx/commit/c3a7bcabaa4bf82299d9f486c8b3529f9c04c93b

Merge pull request dotnet/corefx#9573 from dotnet-bot/UpdateDependencies20160621052041

Updating External dependencies to beta-24221-00

Commit migrated from https://github.com/dotnet/corefx/commit/053ee23b44e87b533119b9a5ccb741cdd142e2a8

Merge pull request dotnet/corefx#9565 from stephentoub/ws_refactoring

Several more WebSocket tweaks

Commit migrated from https://github.com/dotnet/corefx/commit/cded4394fee8bbfaad624e2e1816bf3c9c72207f

Updating CoreFx dependencies to beta-24221-04

Commit migrated from https://github.com/dotnet/corefx/commit/82aa3ea6236d6990a50770fb77b79ffb4e06c0b5

Updating External dependencies to beta-24221-00

Commit migrated from https://github.com/dotnet/corefx/commit/84134e5d027d30efcdc4bf3824b63fc7607b8e6f

Merge pull request dotnet/corefx#9569 from dotnet-bot/UpdateDependencies20160621011417

Updating CoreFx dependencies to beta-24221-03

Commit migrated from https://github.com/dotnet/corefx/commit/3b6f18783574dae9ec58f50e5adacc5302330b69

Updating CoreFx dependencies to beta-24221-03

Commit migrated from https://github.com/dotnet/corefx/commit/6e72d3c127cae0a175c63dc942b8c7d8ac5da38b