Use master code only for initial setup and allow setting another simple user code for arming/disarming

[FraBoCH]

The master code may be required to fetch the configuration from the control unit when setting up the integration, ok for that. However the master code allows total control of the control unit and thus saving it in HA configu is a security risk IMHO. It would be cleaner to use a normal user code for arming/disarming and never store the master code. On my system, I've added a dedicated code for HA.