~/.Xresources: Enabled urxvt url-select and fullscreen plugins.

Fullscreen doesn't play well with XMonad (which doesn't support
_NET_WM_ACTIVE) so currently it's a patched version that requires you
(me) to click on the window that is to be maximized. :/

.Xresources

@@ -76,9 +76,17 @@
*color7:                S_base2
*color15:               S_base3
URxvt*scrollBar: false
!! urxvt settings
URxvt*scrollBar:            false
URxvt*font:                 xft:Monaco for Powerline:regular:size=11
URxvt*imFont:               xft:Monaco for Powerline:regular:size=11
URxvt*boldFont:             xft:Monaco for Powerline:bold:size=11
URxvt*italicFont:           xft:Monaco for Powerline:italic:size=11
URxvt*boldItalicFont:       xft:Monaco for Powerline:bold:italic:size=11
URxvt.perl-ext-common:      default,fullscreen,url-select
URxvt.keysym.M-u:           perl:url-select:select_next
URxvt.urlLauncher:          chromium
URxvt.underlineURLs:        true
URxvt.keysym.F11:           perl:fullscreen:switch