presence: bugfix: Add option to disable per-Table lock for database layer
(causes trouble with MySQL in DB_ONLY mode)
presence: Clarify the db_lock_type in the docs in conjunction with the mode DB_ONLY and a MySQL-Backend.
presence: Regenerated README
tm: Fix docs on t_relay_to (Typo)
(as noticed by Victor V. Kustov)
pkg/kamailio/deb: unifying debian packaging
pkg/kamailio/deb: wrap-and-sort control files
pkg/kamailio/deb: update debian copyright file

(cherry picked from commit e1904a040001c82d691fbb42f6149c692143c109)
pkg/kamailio/deb: clean lintian errors

(cherry picked from commit 34720cbbf6f448a727a34164b690dabf393684ec)