debugrecordpruneparents: fix an apparent typo (marks)

test: explicitly disable rebaseskipobsolete in a couple of place (issue5135) We want to keep the old behavior for the sake of testing.

evolve: remove unused import

hgext: turn 'hgext' into a namespace package Actually since Python 2.3, there is some way to turn top level package into "namespace package" so that multiple subpackage installed in different part of the path can still be imported transparently. This feature was previously thought (at least by myself) to be only provided by some setuptool black magic. Turning hgext into such namespace package allows third extensions to install themselves inside the "hgext" namespace package to avoid polluting the global python module namespace. They will now be able to do so without making it a pain to use a Mercurial "installed" in a different way/location than these extensions.

merge stable into default

url: update url to point to the latest hosting The documentation and various packaging were out of date.

tests: add head warning messages Core gained a warning about other head on the same branch. This impact our tests.

split: fix wording of documentation for --rev option

merge with stable

Added tag 5.3.0 for changeset bd59cc2ee203