Data is caching

Now the data for gridviewer is caching using OS cache. I may have to tweak it a bit to behave better as a singleton, but otherwise it is efficient and simple and seems to make everything quite snappy. Especially now that gridviewer is not referencing servers for metadata in each load.

Otherwise, the server url's are now pulling from the wiki page (or any page you wish to configure yourself). Thus, less database configuration is needed just for gridviewer.

Data is combining, now to get it caching.

The data is now combining in the data model... and it seems to be doing it correctly.

Now, I am hoping to get a majority of it caching... and instead of trying to write my own caching, I am going to use a caching mechanism suggested by Chris: OSCache from the OpenSymphony project.

It seems to have generic back-end caching with configurable levels of intelligence and persistence (which is all I really needed)... but it also has the most potential for helping on the front end (like request caching: if a request looks like the exact same request that was sent a minute ago, it will return the exact same HTML that was sent back rather than hitting the server) It also allows for better and more fine-grained error handling.

After that, it's some UI clean up, some javascript niftiness, and testing to see if GridViewer will run in the same area as an AMDS service.