[PATCH] rebase: allow pull --rebase --update

[Stefano Tortarolo]

I quote myself from bts because it seems like you haven't read this comment.

"""
Now pull --rebase behaviour is more consistent with pull -u.

something to rebase => end up at the most recent revision
nothing to rebase but pulled something => update
nothing pulled => do nothing

In addition, it ignores --update when using pull --rebase --update, since many
people have pull = --update in their hgrc
"""

Does _this_ make sense for you? What should we do about this issue?

Cheers,

Stefano