Add pip settings for python's virtualenv.
Improve EC2 path additions to only work if directory present.
Start ssh agent if it isn't started already (for Vagrant)
Hack Vagrantfile and Berksfile as ruby until we find plugins.
Add initial bash_aliases files with some common aliases.
Add solarized colors to vim to try them out.
Add in grep/rgrep adjustments to bash_aliases.
Add FileMerge(opendiff) diff script, but don't use yet (for OSX).