Update emotiv.py

Changed is_research to a class variable definable on init.
Update emotiv.py

Cleanup..
Update emotiv.py

Restored support for older model quality, maybe...
Update mouse_control.py

Changed as per recommendation.
Update example.py

Changed as per recommendation.
Update emotiv.py

Changed default display_output to True.

Fixed battery lookup, supposed to be string.

Removed duplicate statements.
Update render.py

Removed sys import.
Changed color lookup to dictionary.
Re-added support for old model color quality.
Changed resolution on for fullscreen.
General cleanup.
Merge pull request #1 from bschumacher/master

Merge in latest changes.