Makefile: fix npm_libs variable
Makefile: fix npm_libs variable

lolmaus/ember-cpm,elwayman02/ember-cpm,ulisesrmzroche/ember-cpm,elwayman02/ember-cpm,mike-north/ember-cpm,elwayman02/ember-cpm,ulisesrmzroche/ember-cpm,lolmaus/ember-cpm,mike-north/ember-cpm,stefanpenner/ember-cpm,lolmaus/ember-cpm,mike-north/ember-cpm,stefanpenner/ember-cpm,stefanpenner/ember-cpm,ulisesrmzroche/ember-cpm