Rename "class" to "clazz" in method definition.

Author: kevin-lyn

STNetTaskQueue/STNetTaskQueue.h

@@ -106,7 +106,7 @@
  @param delegate id<STNetTaskDelegate>
  @param class Class Class which extends STNetTask.
  */
-- (void)addTaskDelegate:(id<STNetTaskDelegate>)delegate class:(Class)class;
+- (void)addTaskDelegate:(id<STNetTaskDelegate>)delegate class:(Class)clazz;
 
 /*
  Most of the times you don't need to remove net task delegate explicitly,
@@ -116,7 +116,7 @@
  @param uri NSString
  */
 - (void)removeTaskDelegate:(id<STNetTaskDelegate>)delegate uri:(NSString *)uri;
-- (void)removeTaskDelegate:(id<STNetTaskDelegate>)delegate class:(Class)class;
+- (void)removeTaskDelegate:(id<STNetTaskDelegate>)delegate class:(Class)clazz;
 - (void)removeTaskDelegate:(id<STNetTaskDelegate>)delegate;
 
 @end

STNetTaskQueue/STNetTaskQueue.m

@@ -246,10 +246,10 @@ - (void)addTaskDelegate:(id<STNetTaskDelegate>)delegate uri:(NSString *)uri
     [self.lock unlock];
 }
 
-- (void)addTaskDelegate:(id<STNetTaskDelegate>)delegate class:(Class)class
+- (void)addTaskDelegate:(id<STNetTaskDelegate>)delegate class:(Class)clazz
 {
-    NSString *className = NSStringFromClass(class);
-    NSAssert([class isSubclassOfClass:[STNetTask class]], @"%@ should be a subclass of STNetTask", className);
+    NSString *className = NSStringFromClass(clazz);
+    NSAssert([clazz isSubclassOfClass:[STNetTask class]], @"%@ should be a subclass of STNetTask", className);
 
     [self.lock lock];
 
@@ -279,9 +279,9 @@ - (void)removeTaskDelegate:(id<STNetTaskDelegate>)delegate uri:(NSString *)uri
     [self removeTaskDelegate:delegate key:uri];
 }
 
-- (void)removeTaskDelegate:(id<STNetTaskDelegate>)delegate class:(Class)class
+- (void)removeTaskDelegate:(id<STNetTaskDelegate>)delegate class:(Class)clazz
 {
-    [self removeTaskDelegate:delegate key:NSStringFromClass(class)];
+    [self removeTaskDelegate:delegate key:NSStringFromClass(clazz)];
 }
 
 - (void)removeTaskDelegate:(id<STNetTaskDelegate>)delegate key:(NSString *)key