Improve build scripts for those who don't have Framework 32-bit.
Revert "Improve build scripts for those who don't have Framework 32-bit."

This reverts commit 7b8478d9da216aafc45abf0e09603d674d583877.
Visual Studio 2013 files / first try / compiling already
set manifest to point 12
Update some references to newer ones in VisualStudio-VS-2013.csproj
remove strange reference due error
clean duplicates
making VS2013 integration to work on 4.5.1 framework
Merge pull request #520 from Heather/VS2013

VS2013 integration, alpha stage.
Net-4.5 => Net-4.0
Compiler always resides in Net-4.0
Fix #503
Fix #417 Macro wizard now works.
Revert backported code.
Move Nemerle.Diff project to "TestFramework" target.
Remove warning in build for .NET 4.5 and 4.5.1
Merge branch 'master' of https://github.com/rsdn/nemerle
Generalizing diff API
Cleanup Nemerle.Diff projects.
Generalizing diff API
Add 4.5.1 scripts