install.py: New option --submodules inits & updates all submodules
Added gtk3 specific preferences
Use submodule driven vundle
Added steam related fonts
xmonad: Be EMWH compilant to support games in fullscreen
urxvt: fixed url launcher parameter
gtk2: Use dejavu sans
xinitrc: No more wuala and numlockx, but wicd-client and key repeating rate
zshrc: alias updates