Added a -D option to make it easier to spell debug mode.

Made enivorment variable settings work with the http server. So now you can do things like ./z2.py -w 8888 SCRIPT_NAME=Zope and actually have the specified SCRIPT_NAME override the normal SCRIPT_NAME. Useful for keeping ZServer behind a proxy.

to SSI syntax, you can now use ordinary HTML syntax, as in:

  <dtml.in objectIds>
     <dtml.var sequence-item>
  </dtml.in>

Both the new syntax and the SSI syntax are allowed in the same document.
In fact, if you were really twisted, you could:

  <dtml.in objectIds>
     <dtml.var sequence-item>
  <!--#/in-->

;)

Also added a missing type initialization for the BTreeItems internal
type.

reference counts of extension classes are increased when instances are
created.  Prior to this change, the class ref counts were only
decreased by subclass destructors.  Base class destructors followed
the Python protocol and didn't DECREF thier classes (types).  (Python
type ref counts have nothing to do with instance life times, since
Python types are static, unlike extension classes, which may be
dynamic.)

This caused the ref counts of instantiatable base classes to grow,
which looked like a memory leak.

Now, the destructor protocol calls for base class destructors to
DECREF the class in addition to deallocating the object.  The subclass
destructor *only* DECREFs the class if it has to deallocate the object
because there was no base class destructor.

This also fixed an logic ordering problem that caused some dynamically
created classes to be destroyed while they were still needed.

It actually seems to work, though there's still a fair amount missing.

raised in external methods.  We're more careful about seeking
standard_error_message - check for existence in the client object, and
if it's not there try aq_parent - and fallback to the previously
resolved error_value, before the canned "Sorry, an error occurred".

form data. The change also eliminates some unneeded
computation.

in Python 1.5.2.

changes in the 1.5.2 xmllib dont break everything.

Added fix contributed by Brian Hooper for HTTP Clients which don't always spell their HTTP headers correctly.

  from xml to pickles.

to work.

prepended to the document content.