scenery-phet#15: remove SimpleDragHandler 'translate' function that does nothing. No longer necessary to do this, since the default 'translate' behavior was removed from SimpleDragHandler.
updated version to 1.0.0-rc.27
Updated version to 1.0.0-rc.31
make third-party clause the same in all README files, and the clause where it was missing, properly hyphenate "Third-Party" where it was incorrect.
joist#59: replace duck-typing with instantiation or subtyping of joist.Screen, so that we can add 'navbar icon' functionality to Screen.
fix a typo that appears in just about every README file
joist#66, generalize handling of credits, including i18n
Converted to commonjs style imports, see https://github.com/phetsims/joist/issues/69
renamed foldLeft to reduce
updated version to 1.0.0-rc.32
restored friction tab which was inadvertently dropped in 99af4a4
updated version to 1.0.0-rc.33
updated version to 1.0.0-rc.34
sun#21, move callback parameter to options (PushButton, RectangleButton, TextButton, HTMLTextButton) and update all sims accordingly
sun#21, rename 'callback' option to 'listener' for push buttons, for symmetry with addListener, update all sims accordingly.
sun#32, rename subtypes of PushButton, in preparation for creation of ToggleButton hierarchy.
removed unused file
Merge branch 'master' into 1.0

Conflicts:
	js/version.js
	package.json