fix: added missing dependency for travis

Author: Halceyon

package.json

@@ -54,6 +54,7 @@
     "eslint-plugin-import": "^2.2.0",
     "istanbul": "^1.1.0-alpha.1",
     "mocha": "^3.1.2",
+    "parse-json": "^4.0.0",
     "rollup": "^0.36.3",
     "rollup-plugin-babel": "^2.6.1",
     "semantic-release": "^12.4.1",