Bumped version to 0.4.3
Bumped version to 0.4.3

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