Display the list of completed items for the day, in history view
Add 'New Thought' form to the top of ActionItem Review and Focus pages
Tag thoughts with a 'day' parent, by default
Refactor parent_key and parent_type to Parentable mixin (via ActiveSupport::Concern)
Only enforce default 'day' parent for thoughts and web links
Fix tabindex, so you can tab out of new Thought text area and hit save
Fix typo
Add 'completed_at' field to ActionItem edit screen
Fix sorting on Thoughts index page
Add Pensieve field to Thoughts index page
Rework History view