i just did a mv in the IDE, but a git commit at the CLI which didn't pick up the fact it was a move.  i've redone it so it is an explicit git mv.

note, in general, if you "git mv a b" then "git add a" things seem to get a little funny, so i've done the add (for the deprecated CassandraCluster subclasses) as a separate commit (in the rebase i'll be pushing imminently)