Facebook iOS SDK 3.11.1

Summary:
    see https://developers.facebook.com/ios/change-log-3.x/

Upgrading:
    https://developers.facebook.com/docs/ios/upgrading/

Reviewed By: jacl

Test Plan: Release Testing.
Facebook iOS SDK 3.12

Summary:
    see https://developers.facebook.com/ios/change-log-3.x/

Upgrading:
    https://developers.facebook.com/docs/ios/upgrading/
Facebook iOS SDK 3.13

Summary:
    see https://developers.facebook.com/ios/change-log-3.x/

Upgrading:
    https://developers.facebook.com/docs/ios/upgrading/
Merge branch 'facebook-sdk-master'

Conflicts:
	samples/FriendPickerSample/FriendPickerSample.xcodeproj/project.pbxproj
	samples/FriendPickerSample/FriendPickerSample/FPAppDelegate.m
	samples/FriendPickerSample/FriendPickerSample/FPViewController.m
	samples/GraphApiSample/GraphApiSample.xcodeproj/project.pbxproj
	samples/GraphApiSample/GraphApiSample/GraphApiAppDelegate.m
	samples/GraphApiSample/GraphApiSample/GraphApiViewController.m
	samples/HelloFacebookSample/HelloFacebookSample.xcodeproj/project.pbxproj
	samples/HelloFacebookSample/HelloFacebookSample/HFAppDelegate.m
	samples/HelloFacebookSample/HelloFacebookSample/HFViewController.m
	samples/PlacePickerSample/PlacePickerSample.xcodeproj/project.pbxproj
	samples/PlacePickerSample/PlacePickerSample/PPAppDelegate.m
	samples/PlacePickerSample/PlacePickerSample/PPViewController.m
	samples/ProfilePictureSample/ProfilePictureSample.xcodeproj/project.pbxproj
	samples/ProfilePictureSample/ProfilePictureSample/PPAppDelegate.m
	samples/ProfilePictureSample/ProfilePictureSample/PPViewController.m
	samples/RPSSample/RPSSample.xcodeproj/project.pbxproj
	samples/RPSSample/RPSSample/OGProtocols.h
	samples/RPSSample/RPSSample/RPSAppDelegate.m
	samples/RPSSample/RPSSample/RPSFriendsViewController.m
	samples/RPSSample/RPSSample/RPSGameViewController.m
	samples/RPSSample/RPSSample/en.lproj/RPSGameViewController_iPhone.xib
	samples/Scrumptious/Scrumptious.xcodeproj/project.pbxproj
	samples/Scrumptious/scrumptious/SCAppDelegate.h
	samples/Scrumptious/scrumptious/SCAppDelegate.m
	samples/Scrumptious/scrumptious/SCLoginViewController.m
	samples/Scrumptious/scrumptious/SCPhotoViewController.h
	samples/Scrumptious/scrumptious/SCPhotoViewController.m
	samples/Scrumptious/scrumptious/SCViewController.m
	samples/Scrumptious/scrumptious/en.lproj/SCViewController.xib
	samples/SessionLoginSample/SessionLoginSample.xcodeproj/project.pbxproj
	samples/SessionLoginSample/SessionLoginSample/SLAppDelegate.m
	samples/SessionLoginSample/SessionLoginSample/SLViewController.m
	samples/SwitchUserSample/SwitchUserSample.xcodeproj/project.pbxproj
	samples/SwitchUserSample/SwitchUserSample/SUAppDelegate.m
	samples/SwitchUserSample/SwitchUserSample/SUProfileTableViewCell.m
	samples/SwitchUserSample/SwitchUserSample/SUSettingsViewController.m
	samples/SwitchUserSample/SwitchUserSample/SUUserManager.h
	samples/SwitchUserSample/SwitchUserSample/SUUserManager.m
	samples/SwitchUserSample/SwitchUserSample/SUUsingViewController.m
	src/Core/FBDataDiskCache.m
	src/Cryptography/FBCrypto.m
	src/Network/FBGraphObjectTableDataSource.h
	src/Network/FBGraphObjectTableDataSource.m
	src/UI/FBFriendPickerViewController.m