update log
merchant products
Ref #83  #71, admin update merchant_info
updaet auth message
Ref #61 merchant add terminal fail
update  connect to terminal
update log info
err message
log
api of post terminal version
update api
fix bug
updaet
feed back update
prepare for unit test  for model
unit test config

* add factory girl
* product model
update test
update test
update test

*add auth message factorygirl
*not add auth message model test
test update