Add vim and virtualenv files to gitignore
Add vim and virtualenv files to gitignore

These reduces clutter reported by git during development.

Distrotech/mako,wujuguang/mako,sqlalchemy/mako,sqlalchemy/mako,mindw/mako,mindw/mako,zzzeek/mako,Distrotech/mako,wujuguang/mako,zzzeek/mako