fixes #13 - non-breaking spaces in the file
Merge branch 'master' of https://github.com/boakley/robotframework-lint
added IGNORE as an official severity level
added --argumentfile and revamped argument processing
added .doc property to rules
added --verbose option (only used by --list right now)
Merge branch 'master' into process-dirs

Conflicts:
	rflint/rflint.py