Fix docker tests run

Author: jtblin

.travis.yml

@@ -8,11 +8,12 @@ script:
 after_success:
 - docker start angular-chart.js
 - docker exec -it angular-chart.js npm run codeclimate
-- docker stop angular-chart.js
+after_script:
+- docker stop angular-chart.js ||true
 - docker rm angular-chart.js
 env:
   global:
     - secure: YWABlINoIkwl9RFLOW9G0lATEP3aiXXi+DS6TWfvQWWG/jkS5sn7IqWC2U67LjwQ0lDg0yevo3ZD7FyYQ5lr8AVuScAZ6P2o2dm9t/HBKGTG4u016dxbWWYVZ8MAlKT7TfjVD8iDzcWyZedsbpuyaNNp4pGr/CNcvq7TGdJLNkU=
     - CI=1
     - REPORTER=list
-    - TOLERANCE=0.0001
+    - TOLERANCE=0.001

package.json

@@ -8,7 +8,7 @@
   },
   "scripts": {
     "codeclimate": "./node_modules/codeclimate-test-reporter/bin/codeclimate.js < coverage/lcov.info",
-    "docker": "docker run docker-build && docker run docker-test",
+    "docker": "npm run docker-build && npm run docker-test",
     "docker-build": "docker build -t angular-chart.js .",
     "docker-test": "docker run --rm -i -v $(pwd)/coverage/:/src/coverage/ -v $(pwd)/test/:/src/test/ -v $(pwd)/angular-chart.js:/src/angular-chart.js angular-chart.js",
     "test": "gulp check"