[PD-dev] run-up to release 0.43

Hi all,

I have only 2 weeks left in the vicinity of my usual collection of testing machines (will be in New York Sept 1 - Jan. 1!) and so should probably try to get 0.43 finalized. I have several bugs to work on but I think the whole thing is ready to put out compiled "test versions" for people to exercise.

I'll try not to add new "features" but just fix bugs for the next 2 weeks -- I'll have all fall for the next bunch of features (including, perhaps, the ones I've been trying to find time to work on).

I'll do my usual compiling and spot testing, hopefully putting out the test versions within the next day.

cheers Miller