On branch titan

Changes to be committed:
	new file:   iTerm2/LiquidCarbon.itermcolors
	new file:   iTerm2/LiquidCarbonTransparent.itermcolors
	new file:   iTerm2/LiquidCarbonTransparentInverse.itermcolors
	modified:   install.sh
	deleted:    tmux.conf
	modified:   tmux/tmux.conf
	deleted:    vimrc
	modified:   vimsetup.sh
	deleted:    zlogin
	deleted:    zpreztorc
	deleted:    zprofile
	deleted:    zshenv
	deleted:    zshrc

Summary of change(s):
    Moved files into directories. Not many code changes to install or
vimsetup, just reordering flow and temporary print_help() placement.
Also adding iTerm color scheme to match vimrc color scheme, and set
tmux.conf to be xterm-256colors.