Broke out input-edge/output-edge arguments into seperate arguments with the standard defaults, so the user doesn't have to enter them all the time. Set starttime/endtime type to UTCDateTime.  Passed args into run/run_as_update

Refactored starttime/endtime to default to None, so algorithm and outputFactory can use starttime/endtime from input source.

Made changes per git comments,  mainly coding standards,  and minor refactoring.  Definite bug in setup.py with missing comma.

refactored argument parser to use mutually exclusive groups for input and output. Also put algorithms in their own group.