Fixup template packaging.

Normalize ASASSN timestamps.

Fixup for contacts import.

Switched to Python 3.

Return to emailing via Gmail as default.

Disable GAIA-feed until sure deduplication works correctly.

Disable Swift annotation scraping in production until tested.

Exclude additional line from asassn feed-parsing.

Bugfixes: Disable sendgrid until we can investigate new API version.

Also update tests - removed a single ASSASN feed entry.

Ignore duplicate-IVORN test-messages from NASA-INTEGRAL stream.

This avoids sending endless useless exception-notification emails.