1.调整Add Task操作顺序，先add，后start。

common/upload/RAUploadManager.m

@@ -72,7 +72,7 @@
     
 //    [self.arr_queue addObject:task];
    
-    
+    [[self mutableArrayValueForKey:@"arr_queue"] addObject:task];
     if(self.newtaskStatus==TaskStatusWait)
     {
         
@@ -80,11 +80,11 @@
 
         
     }
-     [[self mutableArrayValueForKey:@"arr_queue"] addObject:task];
+    
 }
 -(void) addTasks:(NSMutableArray*) tasks
 {
-    
+     [[self mutableArrayValueForKey:@"arr_queue"] addObjectsFromArray:tasks];
     if(self.newtaskStatus==TaskStatusWait)
     {
         for(NSMutableDictionary* task in tasks)
@@ -92,7 +92,7 @@
         
         
     }
-    [[self mutableArrayValueForKey:@"arr_queue"] addObjectsFromArray:tasks];
+   
 }
 
 -(void) removeTasks:(NSMutableArray*) tasks