Merge changes made in Gnus trunk.

Merge changes made in Gnus trunk.

nnir.el (nnir-run-imap): Return article list in UID order.
gnus-start.el (gnus-auto-subscribed-groups): Add nnimap to the list of automatically subscribed groups.
 (gnus-auto-subscribed-categories): New variable.
 (gnus-matches-options-n): Use it.
 (gnus-default-subscribed-newsgroups): Remove unused variable.
 (gnus-start-draft-setup): Message a bit less.
gnus-agent.el (gnus-agentize): Don't create the queue group automatically on startup.  It'll be created later, if needed.
gnus-start.el (gnus-1): Clarify comment.
 (gnus-matches-options-n): Fix typo in last change.
 (gnus-1): Don't create the nndrafts group twice.
 (gnus-setup-news): There's no need to read the active file here, since that's done again later on a per-backend basis.
 (gnus-start-draft-setup): Make sure that the new group is started out empty.
netrc.el (netrc-point-at-eol): Remove the unused netrc-point-at-old and netrc-bound-and-true-p bindings.
 (netrc-parse): Cache the netrc contents.