don't 'log' to stderr in `RemoteProgress`
don't 'log' to stderr in `RemoteProgress`

There is simply no excuse to doing that.

Closes #330

h4ck3rm1k3/GitPython,manasdk/GitPython,StyXman/GitPython,StyXman/GitPython,breavo/GitPython,ghtdak/GitPython,pengshp/GitPython,ghtdak/GitPython,beni55/GitPython,expobrain/GitPython,breavo/GitPython,expobrain/GitPython,jeblair/GitPython,pengshp/GitPython,gitpython-developers/gitpython,gitpython-developers/GitPython,gitpython-developers/gitpython,nvie/GitPython,cdht/GitPython,StyXman/GitPython,dpursehouse/GitPython,dpursehouse/GitPython,gitpython-developers/GitPython,manasdk/GitPython,beni55/GitPython,h4ck3rm1k3/GitPython,cdht/GitPython,pengshp/GitPython,cdht/GitPython,jeblair/GitPython,nvie/GitPython