GV-90: Renamed all solution directories, packages and usages from GitFlowVersion to GitVersion
Merge branch 'master' of https://github.com/Particular/GitVersion

Conflicts:
	GitVersion/VersionForDirectoryFinder.cs
	GitVersionTask/NugetAssets/GitVersionTask.nuspec
	Tests/AssemblyInfoBuilderTests.VerifyCreatedCode.approved.txt
	Tests/VersionOnMasterFinderTests.cs
Merge pull request #96 from GeertvanHorrik/master

GV-90: Renamed all solution directories, packages and usages from GitFlowVersion to GitVersion