chore(package): update camelcase to version 5.2.0

Closes #68

Author: greenkeeper[bot]

package.json

@@ -81,7 +81,7 @@
     "@angular/platform-browser-dynamic": "^4.1.3",
     "@types/jasmine": "2.5.53",
     "@types/node": "^8.0.0",
-    "camelcase": "^4.0.0",
+    "camelcase": "^5.2.0",
     "codecov": "^2.2.0",
     "codelyzer": "^3.0.1",
     "concurrently": "^3.4.0",