evolve: add an `--update` flag to `hg evolve` command This patch adds a new `--update` flag which defaults to True. The update flag updates the working directory to the head of evolved revisions after `hg evolve` command. This flag can be used to not update your working directory after `hg evolve` which has been one of the biggest feature request from fig team at Google. To not update your working directory, the user can do `hg evolve --no-update`. If the working directory get obsoleted by evolve command, it will update to the successor. This patch also adds some basic tests for the flag introduced.

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This software was downloaded from

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https://www.mercurial-scm.org/repo/evolve/

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Copyright 2011 Peter Arrenbrecht <peter.arrenbrecht@gmail.com>

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               Logilab SA        <contact@logilab.fr>

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               Pierre-Yves David <pierre-yves.david@ens-lyon.org>

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	       Patrick Mezard <patrick@mezard.eu>

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This software may be used and distributed according to the terms of the GNU

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General Public License version 2 or any later version.

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On Debian systems, the complete text of the GNU General Public License version

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2 can be found in `/usr/share/common-licenses/GPL-2'.

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