now fixing a small cosmetic glitch and giving the correct commit message:
The latest and greatest version of the blocks documentation is here... Lots
of work and polishing to make it as useful as possible. I daresay that it's
pretty complete for its purpose now.
rest of Moodle. The convention for blocks is now:
class block_something extends block_base { ... }
HOWTO updated accordingly, plus some more minor polishing. More to come.