making @mention background darker in blockquotes
REMOVE: Get rid of the `hotness` control for good.
REMOVE: `discourse_poll` has not worked for over a year now. Let's
remove it.
Show discourse logo as system user avatar
FIX: use actions in user_stream_view.js
Merge pull request #1882 from awesomerobot/master

making @mention background darker in blockquotes
Work in progress: Swap out onebox code for onebox gem
Appropriate Onebox style
Add DiscourseLocalOnebox
Add twitter to Onebox.options
Topic list dates formatting changes: use Dec '12 and Jan 21
Don't need to show date in smaller font when MMM Y format
PERF: optimise featuring of topics and users

Previously this would delete all features and recreate, causing
uneeded network traffic and db pain
FEATURE: new scheduler so we can deprecate sidetiq

This is a work in progress, should have it finished tomorrow.