refactor bonfire to loopback json

common/models/Bonfire.js

@@ -1,19 +0,0 @@
-var mongoose = require('mongoose');
-/**
- *
- * @type {exports.Schema}
- */
-
-var bonfireSchema = new mongoose.Schema({
-    name: {
-        type: String,
-        unique: true
-    },
-    difficulty: String,
-    description: Array,
-    tests: Array,
-    challengeSeed: Array,
-    MDNlinks: [String]
-});
-
-module.exports = mongoose.model('Bonfire', bonfireSchema);

common/models/bonfire.json

@@ -0,0 +1,23 @@
+{
+  "name": "bonfire",
+  "base": "PersistedModel",
+  "trackChanges": false,
+  "idInjection": true,
+  "properties": {
+    "name": {
+      "type": "string",
+      "unique": true
+    },
+    "difficulty": "string",
+    "description": "array",
+    "tests": "array",
+    "challengeSeed": "array",
+    "MDNlinks": {
+      "type": "array"
+    }
+  },
+  "validations": [],
+  "relations": {},
+  "acls": [],
+  "methods": []
+}