Avoid dispatch import, revert to simple argument parser

(0.9.2compat) avoid dispatch import, revert to simple argument parser Make nokwcommands a tuple as long as it's private. No need to import fancyopts, as we use own w/o bug. Clean overriding of findcmd. We only need simple argument parsing for command. No expensive dispatch import, also avoids potential clashes with invasive RuleDispatch (setuptools).

Make keyword against current Mercurial available as standalone extension

Branch off backwards compatible version The default branch will contain the version without the overhead for backwards compatibility. This will make a standalone extension available which works with current Mercurial.