0e6d23dd53
This commit adds python logging to test_framework.py. By default this will output all log levels (DEBUG-INFO-WARNING-ERROR-CRITICAL) to a test_framework.log file in the temporary test directory, and higher level logs (WARNING-ERROR-CRITICAL) to the console. The level of logging to the console can be controlled by a new log-level parameter. This should have no interaction with the existing trace-rpc parameter.