mq: add qgoto command.

Fix typo in bugzilla extension.

Fix test-patchbomb for crew

mq.el: add mq-signoff, to sign off on a patch

mq.el: don't fill half the screen with a single line of output.

mq.el: add hook to run when finishing the edit of a patch.

imported patch mq-refresh-git.patch

mq.el: allow mq-diff to take a git option.

mq.el: add mq-diff function.

mq.el: add mq-edit-series function.

mq.el: add mq-new function.

Fix up patchbomb test

add test for patchbomb extension.

contrib/hgsh: Check for .hg/store as well as .hg/data. This is required by the new repository layout.

MQ: tidy up if a qpush is interrupted. This aborts the transaction, makes sure the dirtied dirstate isn't written out, and cleans up the working directory.

Merge with stable

merge: fix spurious merges for copies in linear updates We make better use of contexts to accurately identify copies that don't need merges. Add a simple test and update other tests.

branch.cache: silently ignore I/O and OS errors

context: fix workingfilectx._changectx

mercurial.el: don't raise an error from find-file-hook find-file() shouldn't fail even if unreadable .hg directory is exists. Not enabling hg-mode is sufficient for that senario.

mercurial.el: move defmacro of hg-do-across-repo before use Macros must be defined before use to be byte-compiled properly.

Unconfuse font-lock

Add fast-forward branch merging

Merge with crew-stable. HG: changed hgext/mq.py

mq: fix qtop failure when the series ends with guarded patches.

Test qtop breaking when series ends with guarded patches.

simplemerge: flush stdout before writing to stderr. Besides, stderr is not always unbuffered under win32 (when redirections occur for instance), and it should be flushed too.

Move win32 find_in_files from util_win32 to util.

Merge with stable

Merge with crew-stable