commit: 35e2c09bde4729c702e647f27690417bd362fab7

Some reference to patchwin remain...
This refactors pdgui.js to prevent errors for early messages from Pd.
Some references to raw patchwin array still remain, but on the whole this
should make things more sane.

There might also still be some places where a null-dereference error will
still bite us. For example, I think we need a check in the "q" method for
existence. But such changes can now happen in a single location inside
the "gui" definition, rather than scattering them throughout the file as
was done before as a stopgap.

Unfortunately Pd will send graphic updates for gui objects that are
in a GOP canvas yet are outside the bounds of the rect.