Set the initial size for BakerView, avoiding weird animations.
Fixes #1100.
Prevent hiding navigation bar twice

The fix introduced in pull request #670 caused some BakerViewController initialisation methods to be called twice, most notably the method to hide the navigation bar. This was causing issues with the hiding animation, as it was enqueued twice.
Prevent hiding navigation bar twice

The fix introduced in pull request #670 caused some BakerViewController initialisation methods to be called twice, most notably the method to hide the navigation bar. This was causing issues with the hiding animation, as it was enqueued twice.
Merge remote-tracking branch 'origin/master' into ios7
Restored book opening animation in iOS 7