Merge pull request #488 from bitstadium/fix/warnings-when-integrating-from-source

Specify block as void

Author: Benjamin Scholtysik (Reimold)

Classes/BITChannel.m

@@ -221,8 +221,8 @@ - (void)createBackgroundTaskWhileDataIsSending:(UIApplication *)application
     backgroundTask = UIBackgroundTaskInvalid;
   }];
   __block NSUInteger i = 0;
-  __block __weak void (^weakWaitBlock)();
-  void (^waitBlock)();
+  __block __weak void (^weakWaitBlock)(void);
+  void (^waitBlock)(void);
   weakWaitBlock = waitBlock = ^{
     if (i < queues.count) {
       dispatch_queue_t queue = [queues objectAtIndex:i++];