[ruby-core:26019] rdoc has changed...source has not

Just as a note, it appears that the ruby core's rdocs work great with
the rdoc from 2004, but not with the latest rdoc, bundled with trunk
[2.4.3?]

For example, in BigDecimal, here's how it used to parse:

http://webri.tigerops.org/BigDecimal.html

Here's how it parses now:

http://rubydoc.ruby-forum.com/bigdecimal_rdoc_244/BigDecimal.html

(it's missing the tutorial, etc.)

I believe this is the case scattered throughout the entire ruby distro.

Might be worth a doc scrub sometime.  Anybody interested?

Here's my contribution (the big decimal class) (attached).
Cheers.
-r