cleanup if helper
cleanup if helper

knownasilya/ember-twiddle,Gaurav0/ember-twiddle,knownasilya/ember-twiddle,Gaurav0/ember-twiddle,knownasilya/ember-twiddle,Gaurav0/ember-twiddle,ember-cli/ember-twiddle,ember-cli/ember-twiddle,ember-cli/ember-twiddle