Merge pull request #6 from Arie/master

New rvmrc make flags format
Fix prompt for latest Git version

See Git commit: https://github.com/git/git/commit/50bd8b7eb960ff7a646195e0751b48a0e57e03ad
Merge pull request #7 from rdvdijk/patch-1

Fix prompt for latest Git version
Git shortcuts
I don't use hitch anymore
Also search in slim and rackup files
Load more of stdlib in IRB
I like big fonts and I cannot lie
Grep with color
Moar git aliases like amend, upstash
No more IRB, PRY FTW
I cannot stress this enough: PRY FTW
Fix for RBENV w/ ZSH
Accomidate more versions of Git