bumped version-checks to get the monomac launcher app built targetting Mac OS X 10.4
[Core] Fix deserializng empty strings

BXC1588 - Error loading policy file 'Default.mdpolicy.xml'
[Core] Fix culture-specific int serialization
[Core] Don't parse a long as an int
[CSharpBinding] Use the nrefactory semantic highlighting engine.
[CSharpBinding] Improved semantic highlighting
[CSharpBinding] Used old #if region highlighter.
The new one is theoretically better, but the old one provided a better
behavior for the user.
[TextEditor] Changed keyword constant color in monokai scheme.
[TextEditor] Improved C# pre processor highlighting.
Updated nrefactory.