chore(package): update replace-in-file to version 6.0.0

Closes #289

Author: greenkeeper[bot]

Diff for: package.json

@@ -99,7 +99,7 @@
     "lodash.camelcase": "^4.3.0",
     "prettier": "^1.14.3",
     "prompt": "^1.0.0",
-    "replace-in-file": "^3.4.2",
+    "replace-in-file": "^6.0.0",
     "rimraf": "^2.6.2",
     "rollup": "^0.67.0",
     "rollup-plugin-commonjs": "^9.1.8",