Fix incorrect arg in call to get_primary_apl/3 by put FSM

Additionally, optimize the get and put FSMs to only compute a list of
up nodes when using sloppy quorums. The strict quorum code path uses
get_primary_apl/3 which already computes the list of up nodes
internally.
Merge pull request #587 from basho/jdb-sloppy-quorum-api-fix