Implemented create_ot_update() to all models.
Implemented create_ot_update() to all models.

zammad/zammad,zammad/zammad,monotek/zammad,monotek/zammad,monotek/zammad,monotek/zammad,zammad/zammad,monotek/zammad,zammad/zammad,zammad/zammad,zammad/zammad,monotek/zammad