vfs: stop using repo.join/wjoin Mercurial 4.3 has completelu dropped the join and wjoin functions. Let's use the appropriate repo.vfs.join and repo.wvfs.join functions instead. I ran the tests against each version of Mercurial from 2.8 to 4.2. Things before 2.8 seem to already be broken for unrelated reasons.

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