WIP
Update Rmagick to be compatible with the latest ImageMagick version
Remove a couple of hanging console.log statements
Spike out the jobs frontend
Users should be able to edit job postings.

Also ensure that job searching in controllers/services is appropriately scoped.
Add sponsors table to schema.rb
Don't clear the table header when updating the jobs table
Show the "no listings found" message when no jobs are returned on an AJAX request.
Jobs should expire 30 days after posting.
Extract the events bar into a partial
Initial form and label cleanup
Rearrange the top right nav to show a login button and/or job posting button, depending on context
Bring in the missing jobs table CSS
Provide a nice message if a user hasn't posted any jobs yet
Safer job geocoding, in case the user doesn't provide a city
Add click through link and contact e-mail to jobs
Users should be able to destroy jobs
Add a staging environment config
Tweak jobs table header height and background
Remove unused geo fields from jobs and tighten up validations