Merge pull request #28 from obigu/master

Fix for Game Center to open the correct views
Fixed AdMob GADAdSize parameters.
Big Facebook Update
ThinkGaming update
Merge branch 'master' of https://github.com/BlueRiverInteractive/robovm-ios-bindings
Facebook Update
AdMob binding update. Fixes #31.
Facebook update
Vungle update.
Updated ThinkGaming binding.
Updated Tapjoy binding.
Updated Playhaven binding.
Update OpenKit binding
Updated Mopub binding.
Updated In-App-Purchase helper library.
Updated Greystripe binding
Updated Flurry binding
Updated GameCenter binding
Update Google Analytics binding
Updated Appirater binding