Added group tests, finding out the doc hash is not consistent unless i
sort the list first.
finish config integration tests
added assign task test
added orders queue integration test

for now, that should be it for integration testing, at least for this
point.
cleaning things up a bit.  trying to clean up shellout_md5sum
fixed the unique hash for groups
replaced shellout_md5sum with string_md5sum
removed adding group_order into blob/gridfs and simply added as a
metadata to all_groups_tb.  simplifies things more