Merge branch 'rh/remote-hg-bzr-updates' (early part)

Unbreaks a recent breakage due to use of unquote-c-style.

This may need to be cherry-picked down to 1.8.4.x series.

* 'rh/remote-hg-bzr-updates' (early part):
  remote-hg: don't decode UTF-8 paths into Unicode objects
gitweb: Add an option for adding more branch refs

Overriding an @additional_branch_refs configuration variable with
value ('wip') will make gitweb to show branches that appear in
refs/heads and refs/wip (refs/heads is hardcoded). Might be useful for
gerrit setups where user branches are not stored under refs/heads/.

Signed-off-by: Krzesimir Nowak <krzesimir@endocode.com>