Removes css/src folder. Updates build process.
Moves main.css to css/
Stops tracking build/
Stops tracking dev/
Stops tracking tests/lib
Updates build process.
Updates files from SimpleSim.
Adds ball, box classes; Adds public files.
Various build and class updates.
Updated for ver 2.0.0
Item accepts assigns any passed props.
More updates for ver 2.0