Changed the remaining message classes whose serialVersionUID had
previously been set to 1 to the generated value to maintain
backwards compatibility with Helium.
It turns out CommitEntry, PersistEntry, and SaveSnapShot are no longer
used so I removed them.
Change-Id: Ib3c251b7eaf8b8ce5aa4edf693aca23bf67d0402
Signed-off-by: tpantelis <tpanteli@brocade.com>