Minor tweaking of xmit channel class to get rid of annoying log messages. Now xmit channels are never readable, and don't log unhandled connect events.

will be useful for things like XMLDocument which will use ZDOM. Also added doc strings to
all methods.

Cleaned up a lot of minor errors. Changed the Attr class to use acquisition. Fixed NamedNodeMap to allow 'for..in' usage. Added ElementWithTitle class for DTMLMethods. This module still needs more doc strings and permissions.

  (in order to enable REMOTE_USER mode) also opens the monitor to any
  user connecting through localhost.