Merge pull request #71 from habuma/master

Fixed bugs in signed_request decoding
Merge pull request #72 from habuma/master

SOCIALFB-110: Added signin controller to support Facebook Canvas applications.
Merge pull request #73 from habuma/master

Polish and ability to specify scope when authorizing with CanvasSignInController
Merge pull request #74 from habuma/master

SOCIALFB-45: Support for until and since in paged data.
Merge pull request #75 from habuma/master

SOCIALFB-45: More paged list work on some operations that were overlooked in previous commits.
Merge pull request #76 from habuma/master

SOCIALFB-45: Renamed PagedListParameters to PagingParameters
Merge pull request #77 from habuma/master

Changelog update