Squashed commit of changes from ae
Update external/urxvt-perls
Squashed commit of the following:

    emacs: display buffer and file names in frame title
    tmux: set terminal window title; automatic-rename on
    i3: whiter titlebar text for unfocused clients
.fonts.conf: default autohint
i3: add keybinding to fucus the window with an urgent hint
i3: tweak colors
Merge remote-tracking branch 'origin/master' into ae

Conflicts:
	.fonts.conf
	.i3/config
Update external/urxvt-perls