Lucene upgrades

There are quite some different aspects to tackle when facing such an upgrade: highly suggest to review by independent commits.
The Infinispan upgrade is included in this commit sequence as it's a requirement to be able to upgrade Lucene.

 - https://hibernate.atlassian.net/browse/HSEARCH-1621
 - https://hibernate.atlassian.net/browse/HSEARCH-1680
 - https://hibernate.atlassian.net/browse/HSEARCH-1688