added js_runtime to advanced config
added js_runtime to advanced config

nanobox-io/nanobox-engine-php,nanobox-io/nanobox-engine-wordpress,nanobox-io/nanobox-engine-wordpress,pagodabox/nanobox-engine-php,nanobox-io/nanobox-engine-php,pagodabox/nanobox-engine-php,nanobox-io/nanobox-engine-php,nanobox-io/nanobox-engine-wordpress,pagodabox/nanobox-engine-php,nanobox-io/nanobox-engine-wordpress