Changed supported SDK and iPhone 4 layout effects.
 - Added a Constants module to declare... constants!
 - Changed inset shadow to not appear in iPhone 4 due to lag issues
  - This is done by a new pod called GBDeviceInfo
 - Added maximum and minimum supported SDK (7.0, which represents more than 75% of the market)
Layout changes.

 - Removed shadow from project header view
  - Also removed its background color
 - Readded boucing in project details table
 - Changed the status shadow direction to match the inset shadow effect of its container UIView. The devil is in the details.