chore(package): update loopback-component-explorer to version 6.3.1

Closes #21

Author: greenkeeper[bot]

package.json

@@ -51,7 +51,7 @@
     "loglevel": "1.4.1",
     "loopback": "3.8.0",
     "loopback-boot": "2.24.0",
-    "loopback-component-explorer": "4.2.0",
+    "loopback-component-explorer": "6.3.1",
     "loopback-component-fixtures": "1.1.0",
     "mocha": "3.4.2",
     "nodemon": "1.9.2",