Return metadata with sync_send_event instead of through proc mailbox
Return metadata with sync_send_event instead of through proc mailbox

AZ999

GabrielNicolasAvellaneda/riak_cs,yangchengjian/riak_cs,yangchengjian/riak_cs,laurenrother/riak_cs,basho/riak_cs,basho/riak_cs,laurenrother/riak_cs,basho/riak_cs_lfs,GabrielNicolasAvellaneda/riak_cs,dragonfax/riak_cs,sdebnath/riak_cs,yangchengjian/riak_cs,dragonfax/riak_cs,yangchengjian/riak_cs,laurenrother/riak_cs,GabrielNicolasAvellaneda/riak_cs,basho/riak_cs_report,sdebnath/riak_cs,sdebnath/riak_cs,dragonfax/riak_cs,GabrielNicolasAvellaneda/riak_cs,basho/riak_cs,laurenrother/riak_cs,sdebnath/riak_cs,dragonfax/riak_cs,basho/riak_cs