Renamed PHET_CORE/Timer to PHET_CORE/timer, see https://github.com/phetsims/phet-core/issues/39
Renamed PHET_CORE/Timer to PHET_CORE/timer, see https://github.com/phetsims/phet-core/issues/39

phetsims/scenery,phetsims/scenery,phetsims/scenery