chore(package): update lerna-changelog to version 0.8.1

Closes #6

Author: greenkeeper[bot]

package.json

@@ -47,7 +47,7 @@
     "istanbul-combine": "^0.3.0",
     "jest": "^22.0.4",
     "lerna": "^2.0.0-beta.38",
-    "lerna-changelog": "^0.7.0",
+    "lerna-changelog": "^0.8.1",
     "react": "^16.2.0",
     "react-dom": "^16.2.0",
     "react-test-renderer": "^16.2.0",