updated path to reflect that we're running postgresql 9.3 instead of 9.1
changed some ordering to possibly get around some permissions errors
added a warning about the dependancies, fixed the requirements script to install
a recipe actually installs the pip requirements for us
fixed a bug with a missing quote mark
Added ruby, rubygems, rbenv

The chef base box doens't include Ruby except for Chef so it needed to be installed. Switched to using rbenv and killed our Vagrant default gem installation in favor of gem installation through rbenv.