ITS#8635 - Note that non-zero serverID's are required for MMR, and that serverID 0 is specific to single master replication only

Update sections 6.2.2.1, 6.2.3.3

ITS#8538 - Update information on the interval keyword, as it affects refreshAndPersist in very specific circumstances

Ben Jencks authored 12 years ago and Quanah Gibson-Mount committed 9 years ago

Update docs to reflect changes in handling and fix some errors.

Other documentation updates to make it clear that (L)MDB is preferred