introduce the idea of Federated::Base. this is mostly just renaming and collasping of different federation modules, but also starting a direct hiearchy of these federation classes to make everything easier to refactor

don't render page-viewer twice; last_post should actually get the last post posted, not the first one

display proper counts after feedback actions; modified destroy responses to return PostPresenter objects

it auto-expands to the size of the text that was selected
it self-closes after posting again

see also #2741 #2751 #2800

it auto-expands to the size of the text that was selected
it self-closes after posting again

see also #2741 #2751 #2800

you can now create a comment with User#comment!(post, text)

Clicking 'read more' now removes the link and collapses the adjacent paragraphs. Also: hella semicolons. Fixes #2766

Remove pagination from json format of contacts#index; add explanatory comments. I KNOW. But it's super confusing and I can't find a way to rewrite the code to be more clear. Soloing FTL.