Print stderr if keosd_auto_launch_test.py fails
Print stderr if keosd_auto_launch_test.py fails

This commit adds code to keosd_auto_launch_test.py to print stderr
output from cleos if the test fails.

EOSIO/eos,EOSIO/eos,EOSIO/eos,EOSIO/eos,EOSIO/eos