Add migration to add pro users.
Add pro type to user.
Use spaces instead of tabs.
Job to get stats for a project.
Pass an empty dict instead of None.
Stats for pro users.
Merge branch 'master' into issue-934-scheduled-jobs-user
Add interval to each function to customize its interval.
Fix tests for new specs.
Restore value for interval.
Exclude from coverage because those functions are tested outside here.
Tests for app stats.
Test for non pro users.
Exclude code from coverage.

It is tested in a different section.
Refactor.
Refactor.
Refactor
Remove commented code.
Refactor.
Tests.