Implement helpers for setting page titles
Merge branch 'master' into page-titles

* master:
  Add gauges tracking script.
  Refactor total_students into it's own method.
  Fix registration form to use event id, not lesson id.
  Fix registration flow bugs.
  Update domain for outgoing email.
  Update map embed
  Rename to active_admin.css.scss to make Active Admin happy
  Properly compile admin.css
  Made form styles more consistent per recommendation of @jonmagic
  Refactored stylesheets and view markup for maintainability and to remove use of BassCSS stylesheet. Also implemented responsive styles.
  Implement class_size with fallback to DefaultClassSize.
  Add class_size (integer) to Event model.
  Fix bug where end_time explodes when start_time is nil.

Conflicts:
	app/views/lessons/index.html.erb
	app/views/lessons/show.html.erb
Merge pull request #39 from CoderDojoSF/page-titles

Implement helpers for setting page titles