Updated the samples - Pinned versions - Locked NuGet.Config per sample set

Fixing version for System.Console 

Clarified default dev branch 

Merge branch 'UpdateBeta' Conflicts:	NuGet.Config	README.md	kvm.ps1	kvm.sh	samples/HelloMvc/project.json	samples/HelloWeb/project.json Merging beta release changes

Updating master branch to have master feed 

Update README.md 

Updated kvm to the latest versions