fix we chat browser detection issue

Author: pandamicro

CCBoot.js

@@ -1742,7 +1742,7 @@ var _initSys = function () {
     sys.browserType = sys.BROWSER_TYPE_UNKNOWN;
     /* Determine the browser type */
     (function(){
-        var typeReg1 = /mqqbrowser|sogou|qzone|liebao|micromessenger|ucbrowser|360 aphone|360browser|baiduboxapp|baidubrowser|maxthon|mxbrowser|trident|miuibrowser/i;
+        var typeReg1 = /micromessenger|mqqbrowser|sogou|qzone|liebao|ucbrowser|360 aphone|360browser|baiduboxapp|baidubrowser|maxthon|mxbrowser|trident|miuibrowser/i;
         var typeReg2 = /qqbrowser|chrome|safari|firefox|opr|oupeng|opera/i;
         var browserTypes = typeReg1.exec(ua);
         if(!browserTypes) browserTypes = typeReg2.exec(ua);