Add an alias to run tests without npm

Save editing the runtests all the time. Nvm reports errors, but I don't care

files/bin/runtests_no_node

@@ -0,0 +1,11 @@
+#!/usr/bin/env bash
+
+set -e
+
+npm () {
+    true
+}
+
+export -f npm
+
+./runtests