Observe notification center and react to orientation changes
Observe notification center and react to orientation changes

yarry/MRProgress,yungfan/MRProgress,mrackwitz/MRProgress,zaubara/MRProgress,colemancda/MRProgress,odyth/MRProgress,odyth/MRProgress,hanangellove/MRProgress,AddAloner/MRProgress,yungfan/MRProgress,jackywpy/MRProgress,mrackwitz/MRProgress,jackywpy/MRProgress,zaubara/MRProgress,colemancda/MRProgress,AddAloner/MRProgress,zaubara/MRProgress,yarry/MRProgress,AlexanderMazaletskiy/MRProgress,hanangellove/MRProgress,AlexanderMazaletskiy/MRProgress,boherna/MRProgress,boherna/MRProgress