Setup elementary CxxTest framework
Fixed makefile a bit
More testing
Removed old testing code from makefile
Fixed omitted constructor values for Fx and Fy, which led to poor choice of default value.
Added analyze source and brief test.
Bad choice of makefile to include cleaning up; does not do smart rebuild.
Movement errors corrected, test of multiple balanced collisions with high damping passes.
Prerelease version 0.2.0