Issue 101

Shouldn't be too off... 
For @timeck the `ParsesConfigExtensionTest` class contains my take on how to make this all work within our `javax.cache.CacheManager` implementation... 
Is an empty configuration file legal?  Both the "service" element and the wrapper around the "cache" & "cache-template" elements have a minOccurs of zero.  (Appears to be existing behavior in any case.)