Add settings clear permission and clear checks
Bug 900551 - Added new permission for wallpaper setting
Bug 900551 - Mochitests for Settings Permissions
Update tests with settings-clear permission
Bug 1015518 - Make SettingsService use SettingsRequestManager
Bug 1015518 - Fix SettingsService mochitests
Bug 1015518 - Make SettingsService message users use boolean interface
Bug 1012403 - Reenable settings tests except in e10s situations
Clean up message registration in Manager
Comment out mm test for time being
More working on reg/unreg observer fixes