Allow users running the test to specify the log level of test records. (#725)
Allow users running the test to specify the log level of test records. (#725)

* Allow users running the test to specify the log level of test records.

Users can run with --test-record-verbosity=info to have a quieter but
still informative way to watch a test run.

* update help flag

google/openhtf,google/openhtf,google/openhtf,ShaperTools/openhtf,ShaperTools/openhtf,jettisonjoe/openhtf,ShaperTools/openhtf,jettisonjoe/openhtf,ShaperTools/openhtf,ShaperTools/openhtf,google/openhtf,jettisonjoe/openhtf,jettisonjoe/openhtf