commands: call ui.username carefully in debuginstall After c63c336ee2f7, 'hg debuginstall' would abort halfway through if no username was set. We now catch and display the exception instead.

mq: do not call ui.username unless it is necessary After changeset c63c336ee2f7, ui.username will abort by default if no username is set. It is therefore wrong to call ui.username when a username was provided on the command line.

util: sort paths in walkrepos() (fixes test failures in test-hgwebdir)

hgweb: treat rev as raw-rev if user agent is hg

patchbomb: fix 'echo -en' bashism in test-patchbomb The echo command doesn't accept options in some shells. printf is required by the SUSv2 (Single UNIX Specification v2).

Issue919: add a standard extension to recreate hardlinks between repositories. Having to run a standalone Python script from the contrib dir is a nuisance. Also makes various improvements to locking, file discovery, etc. Should also update: http://www.selenic.com/mercurial/wiki/index.cgi/RecreateHardlinksBetweenRepositories