[LCB]custom property editor

[Mike Kerner]

the megabundle widgets have custom property editors bundled with them in
their /editors folder. unfortunately, i cannot find any documentation on
how to do this. i'm assuming we would use a metadata variant, but of course
there does not seem to be any documentation on how to do that. i have tried
embedding both /editors/ and editors/ in the editor metadata, but that does
not seem to work.
any ideas?

-- 
On the first day, God created the heavens and the Earth
On the second day, God created the oceans.
On the third day, God put the animals on hold for a few hours,
   and did a little diving.
And God said, "This is good."