Merge branch 'fc/transport-helper-fixes'

Updates transport-helper, fast-import and fast-export to allow the ref mapping and ref deletion in a way similar to the natively supported transports. * fc/transport-helper-fixes: remote-bzr: support the new 'force' option test-hg.sh: tests are now expected to pass transport-helper.c: do not overwrite forced bit transport-helper: check for 'forced update' message transport-helper: add 'force' to 'export' helpers transport-helper: don't update refs in dry-run transport-helper: mismerge fix