Merge pull request #5 from simonzack/master

Highlight python byte strings, numerous other changes and enhancements
tweaks for IPython/SublimeREPL interactive development, added extra magic functions, various little things...
added bytes syntax, etc.
Added YAML-tmLanguage file (it's prettier than JSON)
fixed up python hex escape sequences

Conflicts:
	PythonImproved.YAML-tmLanguage
	PythonImproved.tmLanguage