[rilmodem] Initial GPRS support.
[rilmodem] More required gprs/gprs-context code; also minor parcel init re-factor work.
Re-merge from ofono-sim-support branch.
[rilmodem] More changes for GPRS support.
[gril] Reduce parcel debug verbosity.
[gril] Add ril constants needed for GPRS support.
[gril] Add req to request struct to allow better logging of RIL replies.
[provision] Allow duplicate APN entries from mbpi db.
[ril] Add debug command tracing logic, using RILC style logging.
Re-merge from trunk.
[rilmodem] Fix GPRS message logging.
[rilmodem] More debug log cleanup.
[gril] More debug logging cleanup/re-factoring.
[rilmodem] Fix GPRS initilization logic.
[rilmodem] Fix gprs-context DEACTIVATE_DATA_CALL request.
[rilmodem] Get rid of unused gprs_context_data vendor field.
[rilmodem] Get rid of unused gprs_data vendor field.
[rilmodem] Add comments explaining lack of usage of core gprs suspend/resume/bearer functions.
[rilmodem] Re-factor DATA_CALL code to strip IP addr prefixes, and handle multiple addrs/gateways in response.
Adding test and maintenance scripts ofono-scripts binary package.