Set vv cron script to use Agg backend
Set starcheck plot back to white background
Reset vv status for updated asp1 products

This code change is mostly for asp_l1 products that were first
ingested as a _last version and then reingested at the default
version.  Just skipping them (not updating the processing table)
because they were "already in the db" mean that the V&V processing
left the _last directory hanging around and did not make an updated
default release directory.
In vv processing, handle the no-data-at-all for an obsid case
Fix text of vv errors
Add the id_status and cel_loc_flag (for stars) to vv report
Many updates in mica.report
Remove first draft commented-code
Handle missing starcheck with LookupErrors
Set obspar to return None if none found
Reduce size of catalog plot
Add sub-reports (slots, aiprops, props) to vvreport
Add rudimentary error handling in vv
Raise LookupError on missing data in vv.process