Another big update:

Another big update:

1) do not do a search 1:* UID request in case we do not sort. That isn't
needed, just use a non uid fetch and request the UID together with the rest
of the headers.

2) Started on adding envelope parsing to sqimap_get_small_header list so we
can remove the imap related code from the messages class.

2) cleaned up the functions in mailbox_display, don't use trillions of
arguments when you can provide an array as well.

3) adapted right_main.php and search.php to fit the adapted functions in
mailbox_display

I hope the code makes more sense now an is easier to understand so that we
can start on separating the logic from the html output and prepare for
templates. Volunteers?

git-svn-id: https://svn.code.sf.net/p/squirrelmail/code/trunk/squirrelmail@7518 7612ce4b-ef26-0410-bec9-ea0150e637f0