-(AlfrescoRequest *) addCommentToNode:(AlfrescoNode *)node
        content:(NSString *)content title:(NSString *)title
        completionBlock:(AlfrescoCommentCompletionBlock)completionBlock - adds a comment to
      the node.
    Parameters
- (AlfrescoNode *) node
 - The node for which the comments are to be retrieved.
 - (NSString *) content
 - The content of the comment.
 - (NSString *) title
 - The title of the comment.
 - (AlfrescoCommentCompletionBlock) completionBlock
 - The block that is called with the new comment on completion of the operation. The completion block has the format typedef void (^AlfrescoCommentCompletionBlock)(AlfrescoComment *comment, NSError *error).
 
Returns
(AlfrescoRequest *)
Example