Delete some unused bundles
Change Bufsurf mappings

I keep hitting them by accident.
Cleanup

Delete a whole lot of unused/uninteresting code and make a few tweaks.

This includes, among other things:
  - Symfony support.
  - Various syntax and indent files, copied from the built-ins for a
    small change.
  - Some of my own code, unfinished or unused.
Bundle update
Subproject update