* remove js from some headers
 * set coding:utf-8 to allow real names in headers

 * Remove some licencing problems
 * To do: same for images
 * See #4200

we have that in all files. To at least lesser the confusion a bit, add
vim tags for that.
Additionally, fix wrong #! in a few files.

http://python.org/dev/peps/pep-0008/ " Comparisons to singletons like None should always be done with
'is' or 'is not', never the equality operators."
Comparisons to None part; second one...
roster_win.py is NOT checked here (waiting for modelfilter)

http://python.org/dev/peps/pep-0008/ " Comparisons to singletons like None should always be done with 'is' or 'is not', never the equality operators."
Comparisons to None part
roster_win.py is NOT checked here (waiting for modelfilter)