Fix for connectable delegate maker which was causing issue when returning by explicit move rather than by value. This made the mutex null
Merged Nic's change to Content Management System which exposes the hashing delegate.
WIP: Http Request fix.
Finished re-writing the HTTP request system.
 - Updated the API for HttpRequest is the same on Android and Windows.
 - Removed the change to the Android Renderer solving white flickers on Activity change as it meant clear colour could no longer be set.
Fixed compilation issue with Content Downloader.
Made changes suggested in review.
Replacing Facebook SDK with newer version (iOS). Removing deprecated native and beta features (iOS).
Merge branch 'develop' of ssh://git/git/repos/ChilliSource into develop
Updating ChangeLog for release 1.2.1
Updating readme version number