adds `--output-path-prefix` to `qx compile` (needed for deployment) (#721)
adds `--output-path-prefix` to `qx compile` (needed for deployment) (#721)

* adds `--output-path-prefix` to `qx compile` (needed for deployment)
* lint

Thanks @johnspackman !
johnspackman/qxcompiler,johnspackman/qxcompiler,johnspackman/qxcompiler,johnspackman/qxcompiler