fix tests broken with cutover to docker/vagrant
fix broken tests
 - each database (local mac, local docker, aws) handles timestamps with time zones differently
 - the big trouble was the change where timezone was dropped from event & reg start and end time
 - some DBs put it in w/ offset UTC, others EST
 - this means a test would pass in one environment, but fail in another
 - this change just puts the date/time w/o offset in the fields we're checking.
 - we're not going to make this change again, so it's safe to make this update
Update README.md

tests can now be run
add fields to conference and payment for check payments
update version number
 - i was checking to make sure this was above v1_19 that i added in master.  i don't see a v1_20 present, so that should be the next one used