1. Switched from TinyMCE to CKEditor.

2. Modified the File class to support folder and directory hierarchy.

3. Implemented image upload for CKEditor.

 4. Added alwaysUseFullPath to SimpleUrlHandlerMapping. This would allow future Wiki URLs.

5. Updated web.xml to Java EE 5; added /wiki/* URL pattern.

6. Fixed a minor bug in OnlineAssignment cloning.

7. Fixed a typo in news.jsp.

8. Students are now sorted by first name on the viewSubmissions page.