Version 0 11 Released - Mosquitto

This is an update with some fairly minor changes and some bug fixes. I had planned on more exciting features but my time has been occupied getting ready for the 25th, when I'm getting married. Those changes will just have to wait until 0.12!

Removed all old sqlite code.
Remove client id limit in clients.
Implemented $SYS/broker/heap/maximum size
Implemented $SYS/broker/clients/inactive to show the number of disconnected non-clean session clients.
$SYS/broker/heap/current size and maximum size messages now include "bytes" to match rsmb message format.
Implemented the retained_persistence config file option - a synonym of the persistence option.
Added security_external.c to broker source to make it easier for third parties to add support for their existing username/password and ACL database for security checks. See external_security_checks.txt.
$SYS messages are now only republished when their value changes.
Windows native broker now responds to command line arguments.
Simplify client disconnecting so wills gets sent in all cases (bug #792468).
Clients now have a --quiet option.
The on_disconnect() callback will always be called now, even if the client has disconnected unexpectedly.
Always close persistent DB file after restoring.
Return error code when exiting the clients.
mosquitto_publish() now returns MOSQ_ERR_INVAL if the topic contains + or
mosquitto now silently rejects published messages with + or # in the topic.
max_connections is now a per-listener setting instead of global.
Connection count is now reduced when clients disconnect (bug #797983).

Thanks to Sebastian Kroll and Karl Palsson.