Consider making synchronized indexing the default policy again

With Jahia 6 we changed the default filter creator for queries to be Lucene rather than DB. The problem with this is that indexation ondefault is only done delayed, resulting in the side-effect, that user might not see the recently added cotnent in the list immediately. This can be fixed by setting the synchronized indexing policy for the particular container definition in the applicationcontext-indexationpolicy.xml

Perhaps we should make synchronized indexation again THE default rule, as I do not believe it is such a performance issue. So only if there are containers/fields, which may cause slow indexation, then a developer could configure that container definition to be indexed in a delayed indexation. We should decide on switching the default some time before the final BETA.