AWM: disabled startup services

Previously I was using AWM to start up some services with X. I've since
migrated that functionality into ~/.xinitrc, however, so I'm removing it
from awesome.
Added x folder

Will now begin tracking .xinitrc changes.
Changes to X and Rakefile

Added the 'x' task to rake. Renamed .xinitrc to xinitrc for convenience.
Modified the Rakefile to use 2-space indentation.
Rakefile: added 'X' task to 'all'
AWM: deleted cruft from rc.lua

I'm no longer using AWM for program startup, so I deleted some lines
that I had commented out previously.
xinit: am now launching xscreensaver on boot

I want it launched so I can lock my screen when I step away.
AWM: Changed the wallpaper
AWM: Deleted cruft files, tidied configuration
X: Detect quad monitors

To generalize this script beyond fourside, I'm now only firing xrandr if
four monitors are detected.
Added feh config files

Also created the associated rake deployment task.
AWM: No longer setting background in theme

I'm now using the feh configuration files directly to accomplish this. I
believe separating concerns like this is a slightly cleaner approach to
solving this problem.
X: modified xinitrc

.xinitrc now invokes the ~/.fehbg file at login to set the desktop
background.