beremiz

fix twice shown error message box, when wrong non-valid IEC identifier entered

It happens when non-valid name for variable name or name of field in
structure entered. This issue is described in details here:
http://trac.wxwidgets.org/ticket/16333
{
"url":"ws://127.0.0.1:8888",
"realm":"Automation",
"ID":"wamptest",
"password":"1234567890",
"key":"ABCDEFGHIJ"
}