Front-end for reactions to stream and forum posts

[hendricksond]

Stream and forum posts can have reactions added/removed - see app/models/concerns/postable.rb add_reaction and remove_reaction

• Add user interface controls for adding/removing reactions.
• Add summary of reactions to a post (number of likes/thoughtfuls/whatever) - this is currently returned in the json of each post
• Add a way to see the details of all reactions to a post - lists of users who have given each reaction type (potentially also for likes on posts that say "x seamonkeys like this post"). This is available by hitting the show_likes / show_reacts endpoints of a stream or forum post.

[hendricksond]

Perhaps we remove 'likes' as a stand-alone thing and fold them in to the more general reactions.

[hendricksond]

Tweet stream reactions documentation starts here: https://github.com/seamonkeysocial/twitarr/blob/master/rest_documentation.md#post-apiv2tweetidreacttype

[hendricksond]

Likes have been ripped out of the back-end. The front-end is using the reactions system to manage likes. The UI still needs to be updated to support all reaction words.