Remove node 0.6 support
Remove node 0.6 support

futurice/pushd,peleccom/pushd,4screens/pushd,Binarypark/pushd,rs/pushd,Yu-Qiu/test-pushd,avqdev/pushd,Binarypark/pushd,Suninus/pushd,chobiwa/pushd,chobiwa/pushd,futurice/pushd,Product-Foundry/pushd,Suninus/pushd,mattwoberts/pushd,avqdev/pushd,rs/pushd,4screens/pushd,peleccom/pushd,Yu-Qiu/test-pushd,mattwoberts/pushd,Product-Foundry/pushd