Copy node test files from correct place, and tidy greedy mocha test

Using '**/*.spec.js' on the file root raises
errors as Mocha tries to read procfs and so on

green_metric_tests/package.json

@@ -4,7 +4,7 @@
     "description": "Integration tests for the Greencheck API, intended for use with the Green Metrics Tool from Green Code Berlin. (https://www.green-coding.io/projects/green-metrics-tool/)",
     "main": "index.js",
     "scripts": {
-      "test": "mocha '**/*.spec.js'"
+      "test": "mocha '/*.spec.js'"
     },
     "author": "James Camilleri",
     "license": "SEE LICENSE IN ../LICENCE",

usage_scenario.yml

@@ -74,8 +74,8 @@ services:
     depends_on:
       - django
     setup-commands:
-      - cp ./green_metric_tests/greencheck_test.spec.js .
-      - cp ./green_metric_tests/package.json .
+      - cp /tmp/repo/green_metric_tests/greencheck_test.spec.js .
+      - cp /tmp/repo/green_metric_tests/package.json .
       - npm install
     networks:
       - greencheck-network