Merge branch 'patch-1' of https://github.com/syabro/GitPython into syabro-patch-1

Note by Sebastian Thiel: Was already fixed
Conflicts:
	git/refs/reference.py

Author: Byron

git/refs/reference.py

@@ -1,6 +1,4 @@
 from symbolic import SymbolicReference
-import os
-from git.objects import Object
 from git.util import (
                     LazyMixin, 
                     Iterable,