#94 deprecated sun.ToggleButton
switched from isNaN to isFinite, see #131
short circuit debug calls in the model, see #131
replaced SkaterState.update({}) calls with custom calls, see #131
replaced SkaterState.update({}) calls with custom calls, see #131
replaced SkaterState.update({}) calls with custom calls, see #131
replaced SkaterState.update({}) calls with custom calls, see #131
replaced SkaterState.update({}) calls with custom calls, see #131
replaced SkaterState.update({}) calls with custom calls, see #131
replaced SkaterState.update({}) calls with custom calls, see #131
replaced SkaterState.update({}) calls with custom calls, see #131
replaced SkaterState.update({}) calls with custom calls, see #131
inlined getSign and added a comment, see #131
Fixed: missing parens led to bad maths
added minimial-ui to the meta viewport declaration, see https://github.com/phetsims/joist/issues/119
Adding FileSaver.js dependency and preload
updated version to 1.0.0-dev.54
Adding repository field to package.json
Do not create tracks on return skater, see #140 and #143
Converted to use new sun buttons with flat shading, see #139