chore(package): update semantic-release to version 17.0.4

Closes #40

Author: greenkeeper[bot]

package.json

@@ -59,7 +59,7 @@
     "react-dom": "^16.1.1",
     "regenerator-runtime": "^0.13.0",
     "rimraf": "^2.6.2",
-    "semantic-release": "^15.9.15",
+    "semantic-release": "^17.0.4",
     "tslint": "^5.11.0",
     "tslint-config-prettier": "^1.15.0",
     "tslint-config-standard": "^8.0.1",