Add an accessor for the shared queue.

This can be used by clients to alter or inspect the queue.

The most obvious use for this is calling setMaxConcurrentOperations: on the queue to alter the number of simultaneous requests that will be made over the network.

@@ -702,6 +702,11 @@ extern unsigned long const ASIWWANBandwidthThrottleAmount;
 
 #endif
 
+#pragma mark queue
+
+// Returns the shared queue
++ (NSOperationQueue *)sharedQueue;
+
 #pragma mark cache
 
 + (void)setDefaultCache:(id <ASICacheDelegate>)cache;

@@ -3902,6 +3902,14 @@ static NSOperationQueue *sharedQueue = nil;
 }
 #endif
 
+#pragma mark queue
+
+// Returns the shared queue
++ (NSOperationQueue *)sharedQueue
+{
+    return [[sharedQueue retain] autorelease];
+}
+
 #pragma mark cache
 
 + (void)setDefaultCache:(id <ASICacheDelegate>)cache