Minor update to X configs, included trackpadtoggle

trackpadtoggle:
  - Included script in repo instead of having it hang around /usr/bin
xbindkeysrc:
  - Updated to use the included trackpadtoggle script instead of
  referencing the script placed in /usr/bin/
dock:
  - Updated script to use a different DP configuration in my summer
  place instead of using the DP->HDMI->DVI connection (now I'm using
  stright DP->DVI).