DIP3 - Remove inheritance protection

[Brad Roberts]

For grins (and to see how well this process might work), I lifted a bugzilla
issue (177) into a DIP:

   http://www.prowiki.org/wiki4d/wiki.cgi?LanguageDevel/DIPs/DIP3

It's a suggestion to remove a feature that several consider to be of little if
any value.  Obviously it's something that can fall into the category of "Doctor,
it hurts when I do this.  Well, don't do it."  But a feature you shouldn't use
is a feature that shouldn't exist, no?

Also, in some ways it's similar to the suggestion to remove .5 as a valid float.
 I really don't want the excuse 'it exists already' to be considered a valid
reason to keep a feature.

Please feel free to update the DIP based on discussion in the NG.  I do NOT
consider myself the owner of the DIP.

Later,
Brad