added sceneryAccessibilityLog to the gruntfile jshint globals to support the accessibility-3 branch of scenery
added sceneryAccessibilityLog to the gruntfile jshint globals to support the accessibility-3 branch of scenery

concord-consortium/chipper,phetsims/chipper,concord-consortium/chipper,concord-consortium/chipper,concord-consortium/chipper,phetsims/chipper,phetsims/chipper