__gaffer.py : Remove shebang
__gaffer.py : Remove shebang

We don't need it because `bin/gaffer` explicitly runs `python __gaffer.py`, and Python 2.6 has long since gone.

johnhaddon/gaffer,hradec/gaffer,hradec/gaffer,GafferHQ/gaffer,ImageEngine/gaffer,ImageEngine/gaffer,GafferHQ/gaffer,GafferHQ/gaffer,hradec/gaffer,johnhaddon/gaffer,hradec/gaffer,johnhaddon/gaffer,johnhaddon/gaffer,andrewkaufman/gaffer,hradec/gaffer,ImageEngine/gaffer,ImageEngine/gaffer,andrewkaufman/gaffer,GafferHQ/gaffer,andrewkaufman/gaffer,johnhaddon/gaffer,andrewkaufman/gaffer,andrewkaufman/gaffer,GafferHQ/gaffer