Finish home page styling
Style app header bars
Style table headers/footers + spacing
Adjust ContestDetails font sizes
Bugfix opaque interface elements in iOS 7.0.x

Bug was in - [VIPColor color:withAlpha:]. It only recognized
RGB colors and choked, returning the same color passed to it,
when it received either HSB or Greyscale colors. Added checks
for these colorspaces.
Merge branch 'develop' into feature/app-styling-II
Merge branch 'feature/app-styling-II' into develop