addremove: atomically update the dirstate In case someone hits ^C during the similarity search, properly rollback

inotify: expose the same dirstate.status() interface as dirstate. The real dirstate.status() does not have any keyword args. For consistency, wrappers or subclasses should not have them either.

keyword: remove spurious locks, improve handling of wlock - kwcommitctx is inside the wlock of repo.commit: no lock - _kwfwrite only needs wlock wlock outside try block, so we don't need to import lock.release _kwfwrite should even be safer that way, as we moved the status call inside the try-except block. Thanks to Benoit Boissinot for help.

keyword: use status' names instead of index