Add wider support to json_schema_compiler

tools/json_schema_compiler/test/arrays.json

 [
   {
-    "namespace": "array",
+    "namespace": "arrays",
     "types": [
       {
         "id": "BasicArrayType",
         "type": "object",
         "properties": {
           "strings": {
             "type": "array",
             "items": {"type": "string"}
           },
           "booleans": {
@@ skipping 27 matching lines @@
             "type": "array",
             "items": { "$ref": "Item" }
           }
         }
       }
     ],
     "functions": [
       {
         "name": "integerArray",
         "type": "function",
-        "description": "Increments the given integer.",
+        "description": "Takes some integers.",
         "parameters": [
           {
             "name": "nums",
             "type": "array",
             "items": {"type": "integer"}
           },
           {
             "name": "callback",
             "type": "function",
             "parameters": []
@@ skipping 49 matching lines @@
                 "type": "array",
                 "items": {"$ref": "Item"}
               }
             ]
           }
         ]
       }
     ]
   }
 ]