[*] concurrency issue warning added in JsonFileTracer.StopTrackExternal
[*] documentation added
[*] TfsPlugin saves messages only once in 5s
[*] FSharp.Core.* files added to NuGet package
[*] build.csx synced with build.fsx
[*] tracking thread is interrupted via event now
[*] requested targets are shown in console title
[*] bug in Trace.StopTrackExternal fixed
[*] IChangeset.Id is int now
[+] Nuspec.v20 added
[+] local settings added
[*] other small improvements
[*] Xml tool based on XDocument now
[*] documentation added
[*] other small improvements
[*] small improvements in GetStarted target in tf.fsx
[*] small formatting improvements
[+] TextDoc.SaveTo method added
[*] reset read-only attribute before save in AssemblyInfo.Embed