Added find namespace references & rename namespace function in Script.
Fixed bug in find namespace references.
Fixed bug in insert block body helper method.
Added code action from Ciprian Khlud <ciprian.mustiata@yahoo.com>:
InvertIfAndSimplify
Fixed issue with InvertIfAndSimplify.
Implemented composed type formatting.
Removed brace forcement formatting options.
They didn't work very well and shouldn't be part of the formatting
visitor (could be added with a FixBracementVisitor).
Refactored formatter (it needs now an ast seeded with new line
tokens).
CSharpParser now seeds the AST with new line nodes when not in type
system mode.
Added distinct color for the 'var' context sensitive keyword.
Fixed completion bug.
Removed debug message.