TO DO
App download (periodically, immediate (in resp msg))
Data download (periodically, immediate (in resp msg)) - done
Terminal params download
Key download (TMS, TSK, TPK) - done
EMV params download - done
AID download - done
CAPK download - done
Printer
Customer Copy - done
Merchant Copy
Reversal - done
Ensure call home works - done
ensure periodic key download tsk decryption works - done
log transaction, log reversal - done
do background job to send unclosed reversal - done
do background job to reverse unclosed transaction - done
change param set up such that when new terminal, it downloads all need settings b/4 start up
Do end of day
put android code on github
put on test flight to test mobile