list_uauthors and list_ucommitters completed.
Remove unneeded print.
Remove stale comment.
Added active() to ActivityList
Misc utilities for running standalone programs.
Some banners in output, using standalone.py
Changed ActionDuration.get_*() to ActionDuration.*().
Add example with OpenStack.
Use standalone module.
Improved comment.
Implemented DurationPersons as variable generator, with associated conditions.
Moving equalJSON_file_persons to the new test_support module
Moving equalJSON() to test_support.
Changed file name.
Added functions for comparing dictionaries, sequences, etc., to
provide more info about JSON variables that are not equal.