Merge pull request dotnet/core-setup#4066 from dotnet-maestro-bot/master-UpdateDepend...
authorWes Haggard <weshaggard@users.noreply.github.com>
Fri, 27 Apr 2018 00:23:12 +0000 (17:23 -0700)
committerGitHub <noreply@github.com>
Fri, 27 Apr 2018 00:23:12 +0000 (17:23 -0700)
Update BuildTools, CoreClr, CoreFx to preview1-02725-03, preview1-26426-07, preview3-26426-07, respectively (master)

Commit migrated from https://github.com/dotnet/core-setup/commit/cb914935bef0c76eb7f87fc3db8394f94d160ab8


Trivial merge