Test bnf.
Delete gen/psi
CHECK IT
Still Parser Test
BNF is fixed to ignore <<EOF>>
Gen files from bnf.
Highlighting Lexer is being tested.
Reference is fixed for RDocument structure.
RHighlightingLexer is completed for function and variable.
Merge remote-tracking branch 'origin/bnfRedesign'

Conflicts:
	resources/colorSchemes/RDarcula.xml
	resources/colorSchemes/RDefault.xml
	src/com/r4intellij/editor/highlighting/FunctionNameAnnotator.java