Update to use weakref for better(?) mapping for memory control?
Seems to work after conversion to python 3.3
Update to be compat with 2.6 and 3.3 (yeah!) -- at least it looks like everything is OK :-)
Major updates to use weakref where appropriate when tracking pointers across js class objects
Callbacks through js to python to js seem to have memory leak at first, but 120M grows to 153 and then stays there forever.  Might
be inefficiency in gc on both js and python side?  but not major
Add "-3" to version to indicate py3 compat
bump version