Avoid IE WebGL software renderer, see https://github.com/phetsims/scenery/issues/285
remove unused "requirejsNamespace' key from all package.json files
If the track has translated, hide the buttons, see #272
// If any pie chart slice is too small, then don't show it.  Use the same rules as the non-webgl pie chart, see #136
Cleaned up formatting in EnergySkateParkBasicsControlPanel.js, see #286
Use {label,icon} instead of [], see #287
Simplified numerical constant in EnergySkateParkBasicsControlPanel, see #288
Removed EnergySkateParkBasicsModel.editing, see #289
moving isWebGLSupported to Util
Fixed: Dragging a track with 2 fingers causes flickering, see #282
phetsims/scenery-phet#66 move all buttons into scenery-phet.buttons
removed unnecessary matrix math and updated var names
    Remove listeners when the ControlPointUI is detached, see #291
    Factored out duplicated values between BarGraphForeground and BarGraphBackground, see #290
Created a track layer, removed moveToFront calls and cleaned up other view instances, see #267, #292, #293
Fixed jshint issues
updated version to 1.0.0-dev.76
Make the Play/Pause button bigger when it is showing the pause button, see #298
updated version to 1.0.0-dev.77
When mousing over the control point, highlight it like a button, to hint that it can be pressed to show the cut/delete buttons, see #234