Important Bug Fix

Unfortunately the previous py5 release 0.10.5a0 had a stupid bug that would not let you import py5 without a working network connection. I am embarrassed to say that I didn't catch this before the release. I do apologize for that. I found it while on the train coming back from PyCon because the network connection was spotty. It was a disappointing mistake but I am glad it impacted me before anyone else (or at least before anyone else reported it).

The issue, #647, is now fixed. On the train ride back I also put in a fix for #613.

In addition, I upgraded the core.jar file to the now latest stable Processing release, 4.4.4.