ws url query parameter is missing.

[DanielYWoo]

For a ws url with query parameters like ws://localhost/test?uid=abc, the current implementation forgets to append the query string in the _writeHandshake method.

{{{
private void _writeHandshake() throws IOException {
String path = this.uri.getPath();
if (path.indexOf("/") != 0) {
path = "/" + path;
}
// code to add, simple fix:
if (uri.getRawQuery() != null) {
path += "?" + uri.getRawQuery();
}
}}}

[DanielYWoo]

And I have found another issue, the pull request has been created for you