Comment 9 for bug 993414

We'll have to handle Python files carefully if we don't want to mess up things even more ;-)
I see:
- quite a few library files that have a shebang but do not need it
- quite a few scripts that need to be marked executable and whose shebang should not be removed (e.g. openerp_mailgate.py)
- at least one script that is executable but does not have the shebang! (base_quality_interrogation.py)

I don't mind scripting the chmod on non-python files, but both executable python files and python files with a shebang at least need to be reviewed one by one afterwards. To speed things up, it would help if someone could make a draft merge proposal with these changes, making the result easier to review.