This is a clone (copy) of CSMH's declaration and methods with an added
id of UnsignedBigInAutoField
We should be able to delete the save_history code, but needs testing.
Add error logging when capa failures happen
Put StudentModuleHistory into its own database
Bump out the primary key on CSMHE
This gives us a gap to backfill as needed.
Since the new table's pk is an unsigned bigint, even for people who don't
consolidate CSMH into CSMHE, the lost rows are unlikely to matter.
Remove StudentModuleHistory cleaner
This will ensure a clean database for new runs, and will likewise
allow for the serversonly / testsonly approach for developing
bok-choy acceptance tests. The cleaner model will completely
rebuild the edxtest database for any new test run. This will
not be a costly maneuver because of our test cache.
