rev 543: clean up some use of cl runtime in xmtn

Committed revision 543 to http://stephe-leake.org/dvc

clean up some use of cl runtime in xmtn

  * lisp/xmtn-automate.el: delete xmtn--with-environment-for-subprocess;
    let user set env vars.

  * lisp/xmtn-compat.el: eliminate xmtn-compat functions for emacs 21

  * lisp/xmtn-conflicts.el: (xmtn-conflicts-do-merge,
    xmtn-conflicts-do-propagate): save the conflicts buffer

  * lisp/xmtn-dvc.el:
    (xmtn--insert-log-edit-hints): delete; not used
    (*-future): delete; broken, not useful.
    (xmtn--manifest-find-file, xmtn--revision-manifest-file-entry,
    xmtn--revision-file-contents-hash, xmtn--get-manifest): delete; not used

  * lisp/xmtn-propagate.el: manage conflicts buffer better
    (xmtn-propagate-printer): improve
    (xmtn-propagate-one): get default directory right in reused buffer.

  
  * lisp/xmtn-revlist.el (xmtn--revlist--log-get-info): split out for clarity
    (xmtn-revlist-disapprove): delete; not useful.

  * lisp/xmtn-run.el: delete xmtn--with-environment-for-subprocess;
    (xmtn--command-append-to-buffer-async, xmtn--command-lines-future,
    xmtn--command-output-lines-future,
    xmtn--command-error-output-lines-future): delete, not useful.

  * lisp/xmtn-multi-status.el: New file.

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-- Stephe