Merged in admin/log-entry (pull request #3)
Close branch admin/log-entry
Fix test whitespace failure.
Fix backwards migration.
Add support for storing tenant on LogEntry.
Merged in add-types (pull request #2)
Close branch add-types
Include 3.7 in testing matrix.
Don't run clean in CI/detox.
Don't care about coverage of empty methods.
Changed to AbstractBaseTenant.
Ensure mypy runs in CI.
Add static type checking/mypy
Don't make failing combine a failure.