READ MORE, KTHX:

 - changed some awesome tag icons
 - made tmux navigation keys work for both tmux AND vim panes
 - added tmux powerline
 - made the c-s, etc mappings have leader-based alternatives,
     to ease me away from using control more
 - added quicker clipboard access
 - fine-tuned and added more unite menus
 - made unite use `ag`, which is apparently better than `ack`
 - added hotkeys for when inside a unite buffer
 - added an easymotion way of doing what vim-sneak does
Made vim-tmux-navigate shortcuts work in insert mode, too.