We're generating stats every 2 hours because it's less than the time it
will take to generate stats for every process. Once stats are generated,
this task should take less than a second.
The regenerate task has been added so we can manually execute it.
Execute rake task every day to detect new actions available for not archived proposals. If there are new actions available for today, send email to proposal's author with information text, new actions available and link to proposal dashboard url.
