Add Fisica example.
Build 0318.
Rename python contributed libs examples folder.
Better handle add_library() for a not-installed contributed library.
Build 0319.
Add ControlP5 example.
Build 0320.
Permit indent on hanging open paren
Further improvements to pde2py.
Escape key stops sketch.
More cleanups to interpreter namespace after sketch finishes.
Prevent SketchRunner from quitting on mac.
ast transformation experiment for great justice
Fix a bug preventing set operations from working as expected, and add a regression test.
Proof of concept for auto-global of function variable names.
Slight cleanup on AST stuff.
Finished cleanup of proof-of-concept AST manipulation.
Fix typo. Reformat.
Build 0321.
Turn on autoglobal.