auto resolution and dual monitor support for dolphin

Changes in XBMC (Patch Level 8): https://github.com/beaumanvienna/xbmc/commit/73a31c78fc6fcce0b941d73e214440a6ef6fff9d

XBMC is now passing a third argument to "setResoltuion.sh" which is the monitor name.

Changes in Dolphin (Patch Level 1):
https://github.com/beaumanvienna/dolphin/commit/beb87a4ca95f26dd0fd3c08b4321b2347eb45dd5

Dolphin was changed to ignore  RenderWindowXPos and RenderWindowYPos from

```
[Display]
FullscreenResolution = HDMI-0: 1920x1080
Fullscreen = True
...
RenderWindowXPos = 1680
RenderWindowYPos = 0
...
```
It is instead using dynamically calculated values.

RetroRig itself was improved to use the monitor name for setting up the configuration file of Dolphin (dolphin.ini) upon a settings change in XBMC ("Auto Resolution Detection" #97).

This pull request should close #88 "Dolphin (Gamecube) Incorrectly renders in fullscreen".

Also, I posted a new thread to the dolphin forum in the developers area [here](https://forums.dolphin-emu.org/Thread-ubuntu-dual-monitor-support) and closed my first thread [here](https://forums.dolphin-emu.org/Thread-ubuntu-dolphin-support-for-dual-monitor-setup?pid=337232#pid337232).