bump version.distro to 0.5
bump version.distro to 0.5

igarashitm/switchyard,jboss-switchyard/switchyard,bfitzpat/switchyard,igarashitm/switchyard,jboss-switchyard/switchyard,tadayosi/switchyard,bfitzpat/switchyard,bfitzpat/switchyard,cunningt/switchyard,tadayosi/switchyard,igarashitm/switchyard,jboss-switchyard/switchyard,igarashitm/switchyard,tadayosi/switchyard,cunningt/switchyard,cunningt/switchyard