compat: add a stub FetchPackResult class for use with older dulwich New dulwich refactored the object it returns from fetch_pack (it use to be a dict but is now an object of two dicts, one for ref and the other for symrefs, and a string containing the agent.

include COPYING
include MANIFEST.in
include README.md

recursive-include hggit *.py *.rst
recursive-include tests *.t *.py *.py.out hghave latin-1-encoding testutil