Modify repo to run Yarn instead of NPM

Author: Victor George

.travis.yml

@@ -1,8 +1,8 @@
 language: node_js
 node_js:
 - 5.5.0
-install:
-- npm install
+#install:
+#- npm install
 script:
 - npm run lint && npm test && npm run build
 sudo: false

package.json

@@ -45,10 +45,10 @@
     "lodash": "^4.16.4",
     "moment": "^2.14.1",
     "react": "^15.4.2",
-    "react-datetime": "2.7.1",
     "react-addons-css-transition-group": "^15.3.1",
     "react-addons-pure-render-mixin": "^15.3.1",
     "react-color": "^2.2.7",
+    "react-datetime": "2.7.1",
     "react-dom": "^15.3.1",
     "react-dotdotdot": "^1.0.4",
     "react-layout-pane": "^0.1.16",