Fix project

The VS11 could not compile.
Enforcing compilation warnings
Port CodeFormatting to F#
Remove dependency on FantomasOptionsPage
Fix rebase side-effect

FSharpVSPowerTools.csproj could not be loaded anymore (invalid XML)
Fix rebase side-effect 2
Merge remote changes from 'upstream' to 'master'
Merge & remove annoying F# warnings

* The annoying warning is the one labeled #52
Merge pull request #67 from OkayX6/master

Port CodeFormatting from C# to F#