Merge pull request OmniSharp#1231 from mholo65/feature/OmniSharpGH-1229

GH1229: Adds /blockstructure handler for .cake files

Merge pull request OmniSharp#1241 from 0xF6/master

add msbuild_stable to requires

Update CHANGELOG.md

Update CHANGELOG.md

Update CHANGELOG.md

Merge pull request OmniSharp#1176 from rchande/version30changelog

Change log updates

Merge pull request OmniSharp#1175 from OmniSharp/masterToCodeAnalysis29

Master to code analysis29

Merge pull request OmniSharp#1174 from rchande/cs7.3

Allow specifying C# 7.3

Merge pull request OmniSharp#1160 from DustinCampbell/dont-over-notif…

…y-files

Ensure that we don't subscribe the same file-watcher callback multiple times

Merge pull request OmniSharp#1107 from rchande/fixDuplicateDiagnostics

Disable cake diagnostics endpoint for requests that don't specify a file