[Python-Dev] new section on naming and binding in reference manual

[Jeremy Hylton]

I replaced the old "execution frames" section of the reference manual
with the naming rules from Appendix A.1 this afternoon.  I made an
attempt to be thorough about noting all the rules and corner cases
that the old documentation covered, but I may have missed something.

For example, I deleted the table of code blocks and namespaces.  I
think all the rules it described are explained in the text.  (And I
think most people are better off not thinking too much about the cases
it describe <0.2 wink>.)

I'd appreciate some review to make sure I've not omitted something
that's important.

Jeremy