Detect deleted messages in ping() for non-CONDSTORE servers

We store the total number of messages per folder.
If a messages is deleted, the total number will change.
If a DELETE+ADD happens at the same time, UIDNEXT will still increase.

Note: I didn't increase the folder cache version on purpose.
Otherwise we lose the cached flags for no good reason.

Signed-off-by: Michael J Rubinsky <mrubinsk@horde.org>
Tweak comment.
phpdoc, cs
Ensure $data['t'] is actually available.
No need for the extra variable just use $status; Add logging.
No need for this for CONDSTORE servers.
CHANGES
Bug: 12595: Fix sending of empty array attributes.

Fixes bogus logging, as well as some fringe-case wbxml corruption.
BFN
No need for this, empty tags should not have an ending tag sent.

Finally fix the annoying creeping spaces in the log file...
Add getLatestEntry($guid) to get the latest history entry for a given $guid

The SQL version is very efficient since it does not need
to loop through all history entries for the object
to determine the latest entry.

Request 12558

Signed-off-by: Michael J Rubinsky <mrubinsk@horde.org>
cs, ws
Bump minor version, we added a new public method.
CHANGES
Require Horde_Mail 2.1.0 because we use Hordesmtp trnasport.
Released Horde_Css_Parser-1.0.1
Development mode for Horde_Css_Parser-1.0.2
[jan] Fix schema version table names when using horde-db-migrate-component.
Released Horde_Db-2.0.4
Development mode for Horde_Db-2.0.5