renamed remote_branch to remote_head, improved errror message
renamed remote_branch to remote_head, improved errror message

dpursehouse/GitPython,cool-RR/GitPython,zsjohny/GitPython,bwrsandman/GitPython,StyXman/GitPython,zsjohny/GitPython,dpursehouse/GitPython,avinassh/GitPython,Conjuro/GitPython,OpenInkpot-archive/iplinux-python-git,h4ck3rm1k3/GitPython,cdht/GitPython,hvnsweeting/GitPython,StyXman/GitPython,StyXman/GitPython,beni55/GitPython,gitpython-developers/gitpython,zsjohny/GitPython,cdht/GitPython,bwrsandman/GitPython,ghtdak/GitPython,roidelapluie/GitPython,nvie/GitPython,ghtdak/GitPython,roidelapluie/GitPython,expobrain/GitPython,jeblair/GitPython,pengshp/GitPython,nvie/GitPython,breavo/GitPython,manasdk/GitPython,cool-RR/GitPython,pengshp/GitPython,bwrsandman/GitPython,pengshp/GitPython,manasdk/GitPython,beni55/GitPython,breavo/GitPython,hvnsweeting/GitPython,cool-RR/GitPython,gitpython-developers/GitPython,h4ck3rm1k3/GitPython,jeblair/GitPython,avinassh/GitPython,gitpython-developers/GitPython,gitpython-developers/gitpython,avinassh/GitPython,expobrain/GitPython,Conjuro/GitPython,cdht/GitPython,Conjuro/GitPython