0.2.0

For development only. Not for production use.

• Added many classes and methods.
• Made the automated testing more systematic.
• Worked around deadlocks in 2 destructors when running on Windows.
• Solved a SIGTRAP in ConvexHullShape.cpp .
• Shortened the names of 30 glue files.
• Re-organized the test sourcecode into 3 new packages.
• Modified Shape.newShape() to accept a zero argument.
• Reduced the recommended number of threads when there are >9 CPUs.
• Corrected the return type of ConvexHullShapeSettings.createShape() .