- purify: apply target=_blank to links
- purify: remove ALLOWED_URI_REGEXP - this breaks external links in
anchor elements
- purify: return a DOM fragment instead of a string
- postprocess: only highlight pre
- postprocess: remove nested code inside pre
- better style messages with css
- Refactor sender class into parts
- Sender name colour depends on mxid, like Element
- (colours slightly modified for contrast)
- Display blank avatar if loading fails
- Remove # parts from mxc
- Don't replace member state if loaded state is older