add automatic now.sh deployments via travis

Author: sbertal

.travis.yml

@@ -1,6 +1,12 @@
 language: node_js
 node_js:
-    - 7
+    - 8
     - 6
     - 4
+secure: "Trspn6Yak8jJwRiMjmpZXaBwJ064HeOQEHizCpRBeTNtxAL6OBnZjIFFt/8o40Kk2M/72CUYIN0Owlo6IFjE91kgWR/N3V1yMSuNKbQ0vEEcXBVrUyM9AiH1KdBUym5h/NSATE0AyjIwQSOc8/MJ+xX4jlp9EQo01B2gSHZCxpo="
 before_install: if [[ `npm -v` != 3* ]]; then npm i -g npm@3; fi
+after_script:
+    - NOW_ALIAS=purecss.io node_modules/.bin/now-travis
+branches:
+  only:
+    - master

package.json

@@ -70,6 +70,7 @@
     "js-module-formats": "^0.1.0",
     "mkdirp": "^0.5.0",
     "mocha": "^3.2.0",
+    "now-travis": "^1.2.0",
     "rimraf": "^2.5.4",
     "supertest": "^3.0.0",
     "walk-sync": "^0.3.1"