Merge pull request dotnet/core-setup#3223 from dotnet-maestro-bot/master-UpdateDepend...
authorEric Erhardt <eric.erhardt@microsoft.com>
Fri, 15 Sep 2017 19:21:41 +0000 (14:21 -0500)
committerGitHub <noreply@github.com>
Fri, 15 Sep 2017 19:21:41 +0000 (14:21 -0500)
Update BuildTools, CoreClr, WCF to prerelease-02015-01, preview1-25715-02, preview2-25715-01, respectively (master)

Commit migrated from https://github.com/dotnet/core-setup/commit/1d0beb92d5b1816d587acf2900f45ffa44092d01


Trivial merge