The name is largely irrelevant as it's only the creator of the file.

Signed-off-by: Andrew McMillan

A couple of checks to make sure that having blocktype code running when blocktypes aren't installed doesn't kill the admin section completely.

Fixed up some of the admin/extensions/plugins.php stuff to do with
artefacts & blocktypes and their interdependencies.
(there's still a todo in there but it's cosmetic).

make more sense.

categories, i18n-ised, correctly menued and y2k compliant.

some requires for additional libs

still to come

there, but there needs to be a bit more javascript niceness to move them
from notinstalled to installed on successful install