cmdutil.commit: use relative paths in the error messages This is more consistent with other error messages and requires less makeup in test-commit and test-symlink-basic.

util.pathto: return '.' instead of an empty string This could happen with something like pathto(repo.root, 'foo/bar', 'foo/bar')

status: put added files that have disappeared in the deleted list This gives the user an indication that something went wrong with this file: $ hg add foo $ rm foo $ hg status foo ! foo Fixes issue212.

revert: unify forget and remove lists This doesn't make a difference right now, but after the next revision some files in state 'a' may end up in the deleted list, and revert won't be able to just remove all files in that list.