Add script to fix permissions on path_helper
Add script to fix permissions on path_helper

This can fix PATH loading issues on OSX, see
http://stackoverflow.com/questions/9853584/how-to-use-correct-ruby-in-vim-how-to-modify-path-in-vim/12146694#12146694

openfirmware/dotfiles,openfirmware/dotfiles,openfirmware/dotfiles