fixed issue with removing items from array
fixed issue with removing items from array

nervetattoo/ember-nf-graph,abuiles/ember-nf-graph,nervetattoo/ember-nf-graph,fastly/ember-nf-graph,abarax/ember-cli-nf-graph,jayphelps/ember-nf-graph,jayphelps/ember-nf-graph,blesh/ember-nf-graph,Netflix/ember-nf-graph,abarax/ember-cli-nf-graph,envoy/ember-nf-graph,fastly/ember-nf-graph,abuiles/ember-nf-graph,blesh/ember-nf-graph,envoy/ember-nf-graph,Netflix/ember-nf-graph