Move urllib error handling from revlog into statichttprepo, where it belongs.

hgweb: pass date tuples around rather than whole changesets for dates

Fix old-http test when no server exists.

Make revlog constructor more discerning in its treatment of errors.

Clean up date and timezone handling. We used to pass changelog dates around as a "unixtime timezone" string containing a pair of encoded ints. Now, they get passed around as a (unixtime, timezone) tuple of numbers, which makes much more sense.

Fix up representation of dates in hgweb. Date display is now uniform both on the command line and via the web interface.

Fix behaviour of commit. It's now a fatal error if the option to --logfile isn't readable. Ditto if both --message and --logfile are specified.

Unify display of dates. We now use one function, commands.datestr, to display dates, instead of calling time.asctime in inconsistent ways.

Print commit time/date from perspective of committer. Previously, it was printed in the time zone of the reader, but with the committer's time zone offset. It is now consistent.

Hook fixups Pass the first new changeset node to the changegroup hook Call commit for each changeset in a pull changegroup Improve hook docs