 can be executed multiple times: few with errors
		 (does not remove call from queue, unless you <code>destroy</code> object manually) 
		 and then (e.g: connection comes back) another one with right response (removes it automatically).
		 <b>Go</b>: statistics, feedback, send user settings. 
		 <b>No go</b>: login, receive server settings.
		 Number of unsent requests available to store is limited to according to ActionScript
		 <code>SharedObject</code> class rules.
		 Use <code>ConnectPHP.clearUnsent()</