Port all xts crash recovery fixes from narayana 5.x branch

We could port them as individual commits, to improve auditability. However, I would estimate there to be ~20+ commits. This would be time consuming and error prone.

The safest thing to do would be to copy the entire 'XTS/localjunit/crash-recovery-tests' from the narayana 5 branch over the top of 'XTS/sar/crash-recovery-tests' as they are both Arquillian based and only differ in the fact that the Narayana 5 branch version has all the fixes applied.