0.22.0 - adds certify command. many other fixes.
0.22.0 - adds certify command. many other fixes.

scoates/Zappa,parroyo/Zappa,anush0247/Zappa,Miserlou/Zappa,mathom/Zappa,parroyo/Zappa,michi88/Zappa,longzhi/Zappa,anush0247/Zappa,mathom/Zappa,scoates/Zappa,pjz/Zappa,Miserlou/Zappa,longzhi/Zappa,michi88/Zappa,pjz/Zappa