修改激光笔模块的数据，可以传入空数组

@@ -35,7 +35,7 @@ import QuestionApe from 'apes/QuestionApe';
 import UTF8 from 'utf-8';
 
 let loger = Loger.getLoger('McuClient');
-let _sdkInfo = {"version": "v1.56.0.20170727", "author": "www.3mang.com"};
+let _sdkInfo = {"version": "v1.56.1.20170727", "author": "www.3mang.com"};
 
 //APE
 let _sass;

@@ -105,7 +105,7 @@ class CursorApe extends Ape {
   ///////鼠标数据发送/////////////////////////////////////////
   packPdu(_param, _itemIdx) {
     //验证坐标点集合数组是否合法
-    if (_param.pointGroup == null || _param.pointGroup.length < 1) {
+    if (_param.pointGroup == null) {
       this._emit(MessageTypes.MCU_ERROR, MessageTypes.ERR_APE_INTERFACE_PARAM_WRONG);
       return null;
     }