Check if dir is git repo before getting branch name
Check for ~/nvm/nvm.sh before accessing it
infinite history
command completion for git & tmux
ensure vim is default editor
load environment variable for ypbot if .bash_ypbot is present
use dot to source bashrc in bash_profile
source tmux bash completion
Tmux bash completion for 1.5
use git autocompletion in bash
Add go environment parameters to bashrc
Use golang vim plugins on dev4