fonts are now loaded in a hierarchy:
- title: smallest, loads first, "riki's fluffy little house" characters only
- crit: loads next, contains ASCII + some other stuff, in weights 400-900 (for body text and headings)
- full: loads last, contains everything (italics & monospace too)
branch permalinks still use /b, but /b?abc now acts as a redirect rather than doing annoying JavaScript garbage
I changed the branch element ID format to accomodate this---now the IDs are of form `b-{id}` rather than `{tree_path}:{id}`.
the old way was stupid anyways.
I hope nothing breaks too majorly because of this.
