Merge branch 'sr/remote-helper-export'

* sr/remote-helper-export: t5800: testgit helper requires Python support Makefile: Simplify handling of python scripts remote-helpers: add tests for testgit helper remote-helpers: add testgit helper remote-helpers: add support for an export command remote-helpers: allow requesing the path to the .git directory fast-import: always create marks_file directories clone: also configure url for bare clones clone: pass the remote name to remote_get Conflicts: Makefile