* Tweaked the code for operator buttons so that only those operator buttons in the toolbar have their text left-aligned. This is done at layout-block level * Silenced "file_init" print when opening the file browser * Disabled animateability of the "active_shape_key_index" for Objects, since this property behaves in a very unpredictable manner, leading to problems with users trying to keyframe shapekey values and ending up keying the list. * Remove some unnecessary RNA wrapping code