Make some custom themes

[Rush]

@icansee

Before merged this could be developed out of the tree and tested with

UTLauncher -stylesheet style.qss

Sample content:

 QLineEdit { background: yellow }
 QCheckBox { color: red }

Programming resources:
http://qt-project.org/doc/qt-4.8/stylesheet.html

Inspiration:
http://qmc2.arcadehits.net/wordpress/style-sheets/

The only thing manually adjusted will have to be color of icons. They don't seem to pick up text colors from the stylesheets so perhaps they have to be manually adjusted on a theme to theme basis.

I imagine having an Unreal Editor styled theme would be cool or some other dark theme.

[Rush]

Please use this build to test other icon colours:
http://x.rushbase.net/e6be71950b2bad37f1d87da802219ac4e87790dd/UTLauncher.zip

Use as such:

ICON_COLOR=black UTLauncher -stylesheet style.qss