Fix RVM Path issue

Added and removed neccesary paths from /etc/paths to fit my need i.e.
have the local bins before global. Also did some minor alias
housekeeping, but still need to work on syncing vimrc from work and
personal (work one is more up to date with current workflow). Also
should add shortcut pipe appends such as the shorthand '| grep'. Look at
thoughbot/dotfiles for reference