adding node canvas to dev dependencies

Author: Thomas Bolis

.travis.yml

@@ -1,7 +1,6 @@
 before_install:
   - sudo apt-get -qq update
   - sudo apt-get install -y libcairo2-dev libjpeg-dev libgif-dev npm nodejs libjpeg8-dev libpango1.0-dev libgif-dev build-essential g++
-  - sudo npm install -g canvas
 
 language: node_js
 node_js:

package.json

@@ -43,6 +43,7 @@
     "babel-core": "^5.0.0",
     "babel-eslint": "^4.1.6",
     "babel-loader": "^5.0.0",
+    "canvas": "^1.3.12",
     "chai": "^3.4.1",
     "core-js": "^2.0.3",
     "css-loader": "^0.23.1",