Merge pull request #97 from ovatsus/master

Fixes for compiler directives
Fix a typo in test cases

Use sepNone instead of id for consistency
Update projects to support VS 2013

The C# project requires one-way upgrade.
F# projects can be reused.
Upgrade to FSharp.Compiler.Editor 1.0.7 and publish VS extension
Update version numbers & update to latest version of NuGet