Fixing xml xsd declarations
Fixes #19. No longer use a default DatabaseIdProvider. And some docs.
Created a sample test that calls afterCompletion on a separate thread.
It breaks when running with version prior to fix for issue #18. 
Interestingly it breaks testWithTxRequired even after the fix. Need to
have a closer look.
fixed pom.xml formatting
testWithTxRequired() test fixed
Temporafy fix for #18. This change should fix connection leak problems
with WebLogic but can potentially cause 2nd cache inconsistencies.
Refreshing dependencies