FIX #3349 Allow checking a VAT number with spaces

One of the first things I did, while starting to try Dolibarr, was to fill info about my company.
I filled my VAT number : "FR 13 794..." and saw the "check" button.
Oh, that's nice ! Click. Didn't work :(
In fact, it didn't work because the webservice Dolibarr uses to check VAT numbers doesn't understand spaces.

By doing this we could enter good looking VAT numbers (with spaces) and still check them.

htdocs/societe/checkvat/checkVatPopup.php

@@ -49,8 +49,10 @@ if (! $_REQUEST["vatNumber"])
 }
 else
 {
+	$_REQUEST["vatNumber"] = preg_replace('/\^\w/', '', $_REQUEST["vatNumber"]);
 	$countryCode=substr($_REQUEST["vatNumber"],0,2);
 	$vatNumber=substr($_REQUEST["vatNumber"],2);
+	
 	print '<b>'.$langs->trans("Country").'</b>: '.$countryCode.'<br>';
 	print '<b>'.$langs->trans("VATIntraShort").'</b>: '.$vatNumber.'<br>';
 	print '<br>';