become python 2.7 compatible to be able to make use of pyinstaller
Merge branch 'master' of https://github.com/frans-fuerst/meddle

Conflicts:
	README.md
	meddle-ui.py
	pymeddle.py
Merge branch 'master' of https://github.com/frans-fuerst/meddle
fix regarding version handling and comparison, switched to version 3 tuple