Avoid jshint warnings for console
Avoid jshint warnings for console

This prevents people from getting jshint warnings about `console` if
they've removed it from their own config. (ember-cli lets warnings in
addon code bleed through to app test suites.)

ember-animation/liquid-fire,ember-animation/liquid-fire-velocity,ember-animation/liquid-fire-core,ember-animation/ember-animated,givanse/liquid-fire,ef4/liquid-fire,ember-animation/liquid-fire-core,twokul/liquid-fire,ef4/liquid-fire,ember-animation/liquid-fire,jrjohnson/liquid-fire,givanse/liquid-fire,ember-animation/liquid-fire-velocity,envoy/liquid-fire,jrjohnson/liquid-fire,ember-animation/ember-animated,ember-animation/ember-animated,jamesreggio/liquid-fire,twokul/liquid-fire,jamesreggio/liquid-fire