Update to prepare for iOS 7 and clean a bit the project.

* Updated Facebook iOS SDK to 3.7.1.
* Replaced Facebook iOS SDK sources with FacebookSDK.framework in Xcode project.
* Setup build.xml and platform.xml to package FacebookSDK.framework with the ANE.
* Setup Facebook iOS SDK as a git submodule for easy update.
* Migrated Xcode project to ARC.
* Reorganized Actionscript folder to have only one project.
* Updated the ASDoc.
* Updated extension.xml and platform.xml for AIR 3.8.
Update to prepare for iOS 7 and clean a bit the project.

* Updated Facebook iOS SDK to 3.7.1.
* Replaced Facebook iOS SDK sources with FacebookSDK.framework in Xcode project.
* Setup build.xml and platform.xml to package FacebookSDK.framework with the ANE.
* Setup Facebook iOS SDK as a git submodule for easy update.
* Migrated Xcode project to ARC.
* Reorganized Actionscript folder to have only one project.
* Updated the ASDoc.
* Updated extension.xml and platform.xml for AIR 3.8.
Merge branch 'master' into develop

Conflicts:
	bin/AirFacebook.ane
Updated README
Fix formatting issue in README
Updated iOS log messages to make them more readable.
Fixed ANE for AIR simulator
Restored SSO when calling openSessionWithPermissions
Refactored Android code, fixed some crashes and removed "openSessionWithPermissions" method.
Updated Facebook Android SDK to 3.5.2.
Updated asdoc
Fixed crash related to Facebook errors.
fixed login freeze with stage3d
add android-debug target to build file
make Stage3D workaround optional
fix subscripting issue for ios5
Merge pull request #116 from iiilx/master

fix subscripting issue for ios5
Merge branch 'master' into feature/share-dialog

Conflicts:
	README.md
	actionscript/src/com/freshplanet/ane/AirFacebook/Facebook.as
	android/res/values-es/strings.xml
	android/res/values-he/strings.xml
	android/res/values-iw/strings.xml
	android/src/com/facebook/FacebookRequestError.java
	android/src/com/facebook/Settings.java
	android/src/com/facebook/UiLifecycleHelper.java
	android/src/com/facebook/android/BuildConfig.java
	android/src/com/facebook/internal/Utility.java
	android/src/com/facebook/widget/FacebookDialog.java
	android/src/com/facebook/widget/FriendPickerFragment.java
	android/src/com/facebook/widget/GraphObjectAdapter.java
	android/src/com/facebook/widget/LoginButton.java
	android/src/com/facebook/widget/PickerFragment.java
	android/src/com/facebook/widget/PlacePickerFragment.java
	android/src/com/facebook/widget/ProfilePictureView.java
	android/src/com/facebook/widget/UserSettingsFragment.java
	android/src/com/facebook/widget/WebDialog.java
	android/src/com/freshplanet/ane/AirFacebook/AirFacebookExtension.java
	android/src/com/freshplanet/ane/AirFacebook/AirFacebookExtensionContext.java
	android/src/com/freshplanet/ane/AirFacebook/LoginActivity.java
	android/src/com/freshplanet/ane/AirFacebook/RequestThread.java
	android/src/com/freshplanet/ane/AirFacebook/WebDialogActivity.java
	android/src/com/freshplanet/ane/AirFacebook/functions/DialogFunction.java
	android/src/com/freshplanet/ane/AirFacebook/functions/SetUsingStage3dFunction.java
	bin/AirFacebook.ane
	build/build.xml
	ios/AirFacebook.xcodeproj/project.pbxproj
	ios/AirFacebook/AirFacebook-Prefix.pch
	ios/AirFacebook/AirFacebook.m
	ios/facebook-ios-sdk
upgrade facebook for android to ver 3.6