EventCancellable (JR-EventSystem 0.0.4-SNAPSHOT API)

```
public interface EventCancellable
```
This interface will generify the way to cancel events adding the isCancelled() and setCancelled() methods.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`boolean`	`isCancelled()`	Validate if the cancellable event was cancelled.
`void`	`setCancelled(boolean cancelled)`	Set the cancellable event as cancelled or not.

- Method Detail
  - isCancelled
```
boolean isCancelled()
```
    Validate if the cancellable event was cancelled.
    
    Returns:
    
    true if cancelled.
  - setCancelled
```
void setCancelled(boolean cancelled)
```
    Set the cancellable event as cancelled or not.
    
    Parameters:
    
    cancelled - true to set cancelled, false to set uncancelled.