Dazzle module work crash with X-Cart 4.2 branch

Dazzle module, commonly used nowadays, does not work with X-Cart 4.2 branch. Usually its work crashes with the following message:

*Warning*: array_merge()
Argument #1 is not an array 
in *modules/DazzleXML/xml_generation_form.php* on line *21

The reason is pretty simple - $HTTP_GET_VARS and $HTTP_POST VARS arrays are empty. You should just replace them with $_GET and $_POST, after that the module will work properly.

By the way, it is required to check all module/DazzleXML files and make the changes everywhere.

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