Enum arrays now serialized as ints, not enum names

Author: borigas

src/CouchDB.Driver/Translators/ConstantExpressionTranslator.cs

@@ -56,6 +56,9 @@ private void HandleConstant(object constant)
                             _sb.Append(JsonConvert.SerializeObject(constant));
                         }
                         break;
+                    case TypeCode.Int32:
+                        _sb.Append((int)constant);
+                        break;
                     default:
                         _sb.Append(constant);
                         break;