Fix issue with backwards range check dying on numbers with underscores
Make most AST classes final and most methods for processing them const
Make it possible to use the new allocator design for the parser
Improve error handling for string interning
Run static analysis checks in parallel. Implement #130
Merge branch 'master' of https://github.com/Hackerpilot/Dscanner

Conflicts:
	stdx/lexer.d