- added full a2 unlock via server.

usage is extremly same as with cid52 db2012/cid2 pnx5230/cid53 P1:
select phone model
on options, check "use server","do full unlock"
enter yours username/password
back to a2 tab
press unlock
request placed in queue, wait some time (up to 72 hours), retry.
follow program instructions (power on phone, install modem drivers,etc)

- misc bugfixes