Fixed a few minor unused variable compilation warnings.
Moved QStatusBar styling to the stylesheet.
Fixed line endings in MainWindow.cc
Removed commented-out references to setStyleSheet(). Moving towards all styles being set in .css files
Refactored indoor stylesheet to have consistent spacing. Removed commented-out code as well.
Some .ui files still pointed to an old mavground.qrc file. They now point to the proper qgroundcontrol.qrc file.
Fixed a couple of compilation warnings and removed some blank lines/dead code from QGCTextLabel.cc
Further styling changes to the outdoor stylesheet. The indoor sheet was modified as inline styles are removed from the C++ code.
Reworked the styling UI. Now there are 4 options: light, dark, custom_light, and custom_dark. Things don't quite work right, but the proof-of-concept is done.
Forgot to rename the CSS files, though the code in the last commit already assumed these names.
Revised the UI for styling QGC again. I think it's a little clearer now.
Forgot to update the resource file to point to the new names for the CSS files.
The style changing UI now works somewhat. Doesn't interact with QSettings yet.
Selecting the desired stylesheet now works correctly, including saving settings between application launches.
Removed the ICONDIR token from the CSS styles; it wasn't necessary and slowed down applying new styles to QGC.
Merging the style-light and style-dark stylesheets so that share the same base
Segregated the coloring of the UI from the rest of the styling in the CSS, so now style-base.css is loaded before the colorizing CSS files.
Merge branch 'master' of https://github.com/mavlink/qgroundcontrol into restyling
Merge branch 'restyling' of github.com:Susurrus/qgroundcontrol into restyling
Merge branch 'master' of https://github.com/mavlink/qgroundcontrol into restyling

Conflicts:
	src/ui/MainWindow.cc