Bump ember-test-helpers version.
Bump ember-test-helpers version.

Fixes bug when invoking `moduleForComponent('my-name', 'MyName');`.

tsing80/ember-qunit,aceofspades/ember-qunit,MattNguyen/ember-qunit,tsing80/ember-qunit,aceofspades/ember-qunit,OrKoN/ember-qunit,MattNguyen/ember-qunit,MattNguyen/ember-qunit,tsing80/ember-qunit,OrKoN/ember-qunit,UmangSardesai/ember-qunit,emberjs/ember-qunit,UmangSardesai/ember-qunit,OrKoN/ember-qunit,rwjblue/ember-qunit,UmangSardesai/ember-qunit,aceofspades/ember-qunit,emberjs/ember-qunit,rwjblue/ember-qunit