Updated podspec for 0.3.1
Updated podspec for 0.3.1

smallLabel/MMProgressHUD,wangmy/MMProgressHUD,mutualmobile/MMProgressHUD,mutualmobile/MMProgressHUD,smallLabel/MMProgressHUD,smallLabel/MMProgressHUD,wangmy/MMProgressHUD,mutualmobile/MMProgressHUD,wangmy/MMProgressHUD