Version bump 1.8.1
Version bump 1.8.1

Ye-Yong-Chi/docker-api,chasebolt/docker-api,swipely/docker-api,moritzheiber/docker-api,molisoft/docker-api,ComputeStacks/docker-api,jefflaplante/docker-api,moritzheiber/docker-api,aratak/docker-api,BWITS/docker-api,chasebolt/docker-api,pwnall/docker-api,ably-forks/docker-api,ComputeStacks/docker-api,alexandrz/docker-api,someara/docker-api,swipely/docker-api,someara/docker-api,njd5475/docker-api