WIP: Post form submits fake announce-to data
Users now belong to and have many Groups
Rename NotifyOfMentions to NotifyMentionedUsers
Announce new posts to users of selected groups
Move announce group checkboxes into a component
Better styling for announce picker
Rename announcements to broadcasts
Can broadcast when creating new threads
Rebuild client-prod
Return group in Group.for_batch_api_data
Make add broadcast button smaller
Add two groups for faculty and current Hacker Schoolers
Rename :checked? to :selected?
More idiomatic filtering
Move inline styles into a stylesheet
Small refactoring
Keep track of broadcast groups on a post