merge with crew-stable

dispatch: also pass level argument to __import__ for ignored modules I wanted to check if mercurial.demandimport could speed up the loading of PyObjC, and ran into this: the level argument for __import__, available in Python 2.5 and later, is silently dropped when doing an 'import *'. I have no idea what these arguments mean, but this minor change made it work. (Oh, and because of that 'from ... import *', PyObjC still took about 2s...)

lsprof: make profile not die when imported modules changes (issue1774)

notify: do not mime encode multipart templates Mulitpart templates should take care of this themselves. See http://www.selenic.com/pipermail/mercurial/2009-July/027017.html Also catch potential parsing errors gracefully.

kill trailing whitespace

color: simplify & improve colorization of qseries Use 'repo.mq.series' to obtain patch names, instead of deriving them from the qseries output. This is both simpler and more robust, and fixes colorization of patches without a message with -s/--summary.

gendoc: documentation section describing available extensions

localrepo: document the locking scheme a little better - localrepo: document lock(), wlock() methods - lock: add class docstring

keyword: use util.datestr for utcdate filter, expose through variable

keyword: reference templating help, add utcdate filter example