Event Show page sorts vols, greys out ones that did not attend an event
Merge branch 'master' of https://github.com/fionatay/bridge_troll into fionatay-master
user can now remove event sessions from new events
Set site-wide 'from' address

Config/initializers/devise.rb sets this for devise, but not for mailers.
https://www.pivotaltracker.com/story/show/41278297
Email volunteers when they volunteer

https://www.pivotaltracker.com/s/projects/608983
Merge branch 'master' of https://github.com/railsbridge/bridge_troll into rsvp-confirmation-mailer
Add db:test:prepare to script/bootstrap
Refactor user controller
Denormalize min/max session start/end times on event
Totals at top of check in page should update as volunteers are checked in
Merge branch 'rsvp-confirmation-mailer' of https://github.com/k-stewart/bridge_troll into k-stewart-rsvp-confirmation-mailer
Merge branch 'chores/refactor-users-controller' of https://github.com/squanto/bridge_troll into squanto-chores/refactor-users-controller
Merge branch 'check-in-totals' of https://github.com/treble37/bridge_troll into treble37-check-in-totals
Restored ajaxyness of Check In buttons.

Check In / Un-Check In buttons update totals ajaxilly.