Re-registering to GSM network

[arne anka]

> In bug #1024 mickey and also mwester talked about the power consumption
> of this change... Quoting one of the comments you can read:
>> While this increases power consumption, it will make a significant  
>> difference to all people who want to use their Neo as a day-to-day  
>> phone.

i certainly hope, the use of that fix is configurable, then!
i never had re-registering problems and with suspens/resume i get a  
battery life time of about 3 to 4 days now ...