Bumped version to 0.5.1
Bumped version to 0.5.1

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