Fix #91 (bitbucket)

Non python files were being included in the git hook. Also, I realized that
with --install-hook on git projects, the file was not readable to the user.
Using binary helps clarify the use of chmod since I had erroneously used the
744 like the commandline does.
Fix #83 (bitbucket)

Tarek had explained to me how important adding specific pins were for
versioning. I forgot to fix this prior to now.
Silly python 2.5 binary is for kids
Yay I can't type any more