Fixed Remove Item Functionality

When an Item is removed, it now removes itself from any scenes that are
connected to it.
Merge remote-tracking branch 'origin/master' into JcoteFork
Merge remote-tracking branch 'origin/master' into JcoteFork
Commented and cleaned code

Commented and cleaned the following files:
- AdventureGame.java (formally Main.java)
- item.java
- ItemManagerPanel.java
- SceneManagerPanel.java
- ItemManagerPanel.java
- SceneManagerPanel.java
- AddConnectionWindow.java
- AddItemWindow.java
- EditItemWindow.java
- MainWindow.java
Merge pull request #40 from jcote008/JcoteFork

Jcote fork - Merged 04/08/14