Bash: Correct typo in home purity checker
Tmux: Increase history size to 20K lines
Vim: Add syntastic and solarized to bundles

Syntastic does syntax checking in different languages and solarized is a
popular colorscheme.
Vim: Add map to run :Ack with word under cursor
Emacs: New emacs config file and README updates

Yes, I started using Emacs. I find Org-mode extremely useful and that
has conviced me to start playing around with this editor.