Sidebar reflects actual theme and frequency
Merge branch 'master' into sidebar

* master:
  refactor bound aggregators to allow re-use
  Make bounds for type text return null
  Update seeds to use date type when quarterly
  Add date support to bound calculations
  Add Indicator.calculateBoundsForType to wrap bound calculation
  Make quarterly indicators use date type, not integer
  Add support for epoch to date imports
Render the most recent and oldest data dates in indicator sidebar
Render themes on draft pages
Refactor oldest/newest headlines to be handled by the controller
Merge pull request #173 from unepwcmc/sidebar

Sidebar