Move ReminderJob into models
Add a Request#autocancel action and notification

Requests can be auto-canceled when they are open past the
AUTOCANCEL_THRESHOLD (2 months). When that happens, the student gets a
notification about it with the open to reopen.
Create autocancel job and rake task
Render autocancel events in admin event view
Simplify some templates with new date helper
Simplify tests using traits in the request factory

"Renewable" and "autocancelable" traits make the tests simpler, make the
intent clearer, and make them much easier to change in the future if the
thresholds ever change.
Reindent
Add a cancel link to request edit/renew form
Error out of renew form if request not renewable
Syntax tweak to appease RubyMine
Indent/format HTML
Add terms of service and privacy policy to site

Linked from a new footer on every page.
Fix bug in the “more” link
Fix “more” link on admin events page

It was pointing to requests, not events.
Remove deprecated columns
Add requests to new ActiveAdmin-based admin UI
Add requests, donations to ActiveAdmin user page

Also compact the display a bit by removing irrelevant/blank fields
Use proper quote marks in FAQ
Refactor metrics tables
Add a new FulfillmentsTable

Shows stats on fulfillments broken down by volunteer and by time