dual monitor support for PCSX2 (Patch Level 1)

I've added XRandr to PCSX2. It is now using the display name to figure out the start position of its graphics window. 

Tested with an installation from scratch.

I'm still not sure how to reproduce #100. I've changed the auto resolution script to have PCSX2 always start in fullscreen mode. Do you think this will solve your problem? (see https://github.com/beaumanvienna/RetroRig/blob/Ubuntu-14.04-Beta/scripts/setResolution.sh#L278)

One issue I noticed is the bios configuration of PCSX2. I solved this in the terminal by setting `HOME=$HOME/.retrorig` and calling pcsx2 and setting things up manually. We should find a better solution.
Maybe add some code to setResolution.sh that checks if `~/.retrorig/.config/pcsx2/inis/PCSX2_ui.ini` contains 

`BIOS=`

with no value set. Only in this case it could set this parameter to a file from `~/.retrorig/.config/pcsx2/bios`