Renamed 'ls' alias to 'lsv' and made a new 'ls' that does not include file change stats.

'ls' was a little too verbose when all I wanted was a short, clean history.
Added zsh editing and resourcing aliases along with an rspec alias for getting complete documentation.
Added more informative ls alias.
A couple new git-related shortcuts.

'eg' to edit '~/.gitconfig'
'git brv' for a faster 'git branch -v' or 'git br -v'