Integrate with Travis and Coveralls

.travis.yml

@@ -0,0 +1,4 @@
+language: node_js
+node_js: node
+script: npm run lint && npm test
+after_success: npm run coverage

package.json

@@ -13,6 +13,7 @@
     "build:map": "babel --source-maps=true -d dist src",
     "pretest": "npm run build:map",
     "test": "nyc ava test",
+    "coverage": "nyc report --reporter=text-lcov | coveralls",
     "lint": "eslint src",
     "prepublish": "npm run build"
   },
@@ -53,6 +54,7 @@
     "babel-cli": "^6.9.0",
     "babel-plugin-add-module-exports": "^0.2.1",
     "babel-preset-es2015": "^6.9.0",
+    "coveralls": "^2.11.9",
     "eslint": "^2.11.1",
     "eslint-config-lukechilds": "^1.5.1",
     "nyc": "^6.4.4"