chore(package): update rollup-plugin-typescript2 to version 0.17.1

Closes #31

Author: greenkeeper[bot]

package.json

@@ -21,7 +21,7 @@
     "rollup-plugin-commonjs": "^9.0.0",
     "rollup-plugin-node-resolve": "^3.0.3",
     "rollup-plugin-replace": "^2.0.0",
-    "rollup-plugin-typescript2": "^0.16.1",
+    "rollup-plugin-typescript2": "^0.17.1",
     "tslint": "^5.9.1",
     "typescript": "^2.8.1"
   },