#113 Event Driven Architecture

Adds various changes including :
- Fixes to Javadoc
- Test refactoring and improvements
- Refactored EventDispatcher to be immutable
- Removed DynamicRouter interface since it not needed
- Renamed Channel to a more appropriate name - Handler

event-driven-architecture/src/main/java/com/iluwatar/eda/event/Event.java

@@ -1,5 +1,6 @@
 package com.iluwatar.eda.event;
 
+import com.iluwatar.eda.framework.EventDispatcher;
 import com.iluwatar.eda.framework.Message;
 
 /**
@@ -15,8 +16,8 @@ public class Event implements Message {
 
   /**
    * Returns the event type as a {@link Class} object
-   * In this example, this method is used by the {@link com.iluwatar.eda.EventDispatcher} to
-   * dispatch events depending on their type.
+   * In this example, this method is used by the {@link EventDispatcher} to
+   * onEvent events depending on their type.
    *
    * @return the Event type as a {@link Class}.
    */