update CHANGELOG
update CHANGELOG

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