Improved params handling regarding RoR 5.0.
Improved params handling regarding RoR 5.0.

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