Build the type providers!
Remove FSharpx.Collections.Experimental.Tests from .NET 3.5 build
FsCheck is no longer available for .NET 3.5
Issue #218
Revert "Remove FSharpx.Collections.Experimental.Tests from .NET 3.5 build"

This reverts commit 26717e3eb078dc0e2cafef454a031f879416a9b7.
Remove FSharpx.Collections.Tests from .NET 3.5 build FsCheck is no longer available for .NET 3.5 Issue #218
Merge branch 'master' of github.com:fsharp/fsharpx

Conflicts:
	build.fsx
Revert "Build the type providers!"

This reverts commit e531ee481ca634e9873139ba9f434236908baa0d.