Scott wrote a lexer!
Merge commit '8f3a5931a35423efd9d1306b5a5ae2933b296a18'

Conflicts:
	src/com/millennialmedia/intellibot/psi/RobotLexer.java
correct check
Merge remote-tracking branch 'steve/master'

Conflicts:
	src/com/millennialmedia/intellibot/psi/RobotKeywordProvider.java
add test