Big changes in little circle land

Hey,

We're changing circles to no longer receive questions, but instead allow you to post your responses (and general posts) to them through a new tag in the expanded response options!

The ability to post to circles ended up making the code for creating questions and responses unordinarily complicated. On top of that, the profile.html template is the longest and most complicated HTML template in the Rainbeam codebase, and having to maintain it twice was not fun. This resulted in circles often being many stages behind user profiles, creating an incoherent look on the site.

I've decided to repurpose the original "lists" idea which I never finished making and instead turn circles into an organizational feature.

You can still have multiple members in your circles! Only members who are a part of a circle can actually post to them. I'll likely add a button for it at some point in the future, but for now you can copy the circle ID and paste it into the "Circle" field when creating responses to publish them to the circle. For posts, just go to the circle and press the "Post" button!

I know this may be kind of annoying for existing circles users, but this is the best move available for keeping the Rainbeam codebase enjoyable to maintain

For developers: the circles API has been changed to match the general authentication API v0. The only real changes for circles is that /avatar and /banner now use the circle's ID instead of name.

Thanks!