Fix GC issue with RequestsToMany FBDialogDelegate passing to Dialog function
Change RequestsCallback's URL parsing logic according to Facebook api changes.

Uids are now under "to" array instead of "request_ids".
[cocos2d] Clean the TextAlignment

use UITextAlignment on iOS, NSTextAlignment on OSX. Prevent using
Justified or Natural alignments as it's not supported by cocos2d
[Chipmunk] Avoid crashes in collision handling
TestFlight updated to v1.2.1 and Thread safe

The original bindings lets your app crash randomly. This fixes that
problem, that to me happend mostly when using different threads.
Updated the readme file
Merge pull request #121 from svrooij/master

TestFlight SDK updated
Merge pull request #120 from StephaneDelcroix/chipmunk

[Chipmunk] Avoid crashes in collision handling
Merge pull request #117 from StephaneDelcroix/cocos2d_textalignment

[cocos2d] Clean the TextAlignment
Merge pull request #111 from folex/master

Fix issue with GC'ed FBDialogDelegate, update apprequests response parsing.