[SoC] GeoWebCache Update

[Marius Suta]

Status Report and update on GeoWebCache for the week anding on June  
20th, 2008


This week's work concerned itself with the implementation of the  
changes to TileLayer to use the Restful interface.
-Rewrote TileLayer as a class rather than the previous interface. Thus  
WMSLayer will extend TileLayer.
-added a TileLayerResource class to integrate with the RESTful  
interface provided by restlet.org
-added a new configuration class, XMLConfiguration that reads the  
configuration from an xml file.
-dropped the idea of using both jdom and restlet.org together. A  
closer inspection of restlet.org's capabilities revaled that through  
the use of w3c DOM model we can obtain an easier integration with	 
restlet.org. Thus jdom will no longer be needed.

The following week I will also add write capabilities to the  
configuration through the rest interface, so far only reads are  
possible.

Thank you,

Marius Suta