Merge pull request #19 from abraham/renovate/rollup-0.x

Update dependency rollup to v0.63.5

Author: abraham

package.json

@@ -39,7 +39,7 @@
     "jest": "23.4.2",
     "pkg-ok": "2.2.0",
     "rimraf": "2.6.2",
-    "rollup": "0.63.4",
+    "rollup": "0.63.5",
     "ts-jest": "23.0.1",
     "tslint": "5.11.0",
     "typescript": "2.9.2"