Changes to the Fake-Calculator.Zip #issue #391

Getting started Batch file changes to take the Nuget from the .nuget
folder and the Build.fsx and the Completebuild.fsx has been made to
point to the Packages folder. This will allow user to run it from the
Package manager console.
Merge pull request #395 from satish860/master

Changes to the Fake-Calculator.Zip #issue #391
BulkReplaceAssemblyInfoVersions should work with fs files
Added ReleaseNotes
Small cleanup
Merge branch 'master' of https://github.com/fsharp/FAKE