Refactoring wish list

[jaley]

Number of things that could do with a rework:

• CLJS code is more side-effecty than it needs to be,
• There's a little bit of server-side templating, which probably doesn't need to happen, given everything else is client-side.
• The documentation "index" data structure could be a bit more deliberate.
• /api/ routes could be simpler.