Refactor and debug Rake task.
	- wrote tests for agenda mailer
	- Rake task update_points should mark a record as up-to-date
		even if no penalties were applied
	- much more careful tests of Rake task update_points
Troubleshoot Rake on Heroku
Tweak email format and re-deploy to Heroku
	- don't use HTML in plain text emails
tweak agenda email text
Tweak account erased alert email
Added Jquery listener to dim the entire page when a TurboLinks link is clicked.
	In local testing, this appeared to have a delay, such that the dim wasn't
	too useful. I'll try it on Heroku, and clearly have more to learn
	about TurboLinks.
Troubleshoot turbolinks indicator on Heroku
Fix agenda email glitch
Test Turbolinks indicator
Added turbolinks_transitions gem
Custom Turbolinks transition solution
Settled on Turbolinks transitions solution
	using the gem by Caarlos0. Not perfect, but it's hard for me to do any better.