Merge pull request dotnet/core-setup#3271 from dotnet-maestro-bot/master-UpdateDepend...
authorEric Erhardt <eric.erhardt@microsoft.com>
Wed, 4 Oct 2017 19:40:13 +0000 (14:40 -0500)
committerGitHub <noreply@github.com>
Wed, 4 Oct 2017 19:40:13 +0000 (14:40 -0500)
Update BuildTools, WCF to prerelease-02104-03, preview2-25804-01, respectively (master)

Commit migrated from https://github.com/dotnet/core-setup/commit/d7df7e59ad9960bd8e6502ae58bebffb8ebd7444


Trivial merge