Separate phone and email contacts, add verification of contact
information, improve views and forms.

Also squash migrations in the alerts app.

Previously forgot to add deepclean and gwhen robot users to the
LVC group.

Since the web view makes a few API requests to load log messages and
other content, we have to allow more requests. Also, it sounds like
users at a university might all appear to be on the same IP address,
so we want to try to account for that.

Not working as expected, so we are going to have to revisit this
feature in the near future.

These environment variables are now required.  Previously, the
corresponding Django settings would default to 'gracedb'.

This will (hopefully) allow us to receive error emails from the
container deployments on AWS.