Added: Javadoc for Customers getByNickname()

projjpn/src/main/java/de/hs_fulda/ciip/projjpn/Customers.java

@@ -31,6 +31,11 @@ public class Customers {
 		return pool.remove(userNickname);
 	}
 	
+	/**
+	 * 
+	 * @param nickname Find User by nickname
+	 * @return
+	 */
 	public User getByNickname(String nickname) {
 		return pool.get(nickname);
 	}