Enviroment variables to fill and use test databases
WIP getting the Genome tests to create the seed data for a test database

Changes in Config/AnalysisProject.pm are to get the alternate DB loader to
see some foreign keys that didn't have delegated properties.
Show the STDERR output when the test fails
Pass in the alternate DB details in the env var instead of hard-coding it

Also, we don't need the GENOME_TEST_USEDB env var - just use the existing
env vars for server, user, passwd
Populate the validation values in the timeline.allocation_event_type table
Populate the validation values in the timeline.analysis_project_event_type table
use autogenerated IDs instead of IDs that already exist in the DB