Caching available in Wigbi 0.99.2

I have now implemented a cache handling class, which simplifies working with cached data. The class, CacheHandler, will be released together with Wigbi 0.99.2, a corresponding demo, the new forum template application as well as a bunch of new seeds and controls.

When I developed the CacheHandler class, I had a very constructive dialogue with Mattias Sundberg, an old friend of mine who is a great PHP developer. He informed me about the serialize/unserialize functions, which works great! I use them to serialize the data in the CacheHandled class and have updated the SessionHandler class to use this approach as well.

The new SessionHandler version will be released together with Wigbi 0.99.2 as well.