Refactor: Using generic dialog message window in registering gps device

[GoogleCodeExporter]

Removing "registerMessage" dialog widget in 
http://code.google.com/p/traceper/source/browse/branches/DevWebInterface/protect
ed/views/site/registerGPSTracker.php?r=583

and using generic dialog message 
like here 
http://code.google.com/p/traceper/source/browse/branches/DevWebInterface/protect
ed/views/site/register.php

 $("#messageDialogText").html("An activation mail is sent to your e-mail address");                                                                                                                                                          $("#messageDialog").dialog("open");  

Original issue reported on code.google.com by [email protected] on 18 Jan 2012 at 6:20