https://github.com/dzonekl/netxstudio/issues/5
SMI Grammar Improvements: 
- Type refinements. 
- Object references.
https://github.com/dzonekl/netxstudio/issues/5
https://github.com/dzonekl/netxstudio/issues/5
- Fix xtend static access with $ and ::
- Some cleanup.
 https://github.com/dzonekl/netxstudio/issues/5