always invoke postcommit hooks after returning ok to client
always invoke postcommit hooks after returning ok to client

wwezhuimeng/riak_search,GabrielNicolasAvellaneda/riak,xuejianhai/riak_search,amyvmiwei/riak,glickbot/riak,planobe/riak,planobe/riak,basho/riak_search,wwezhuimeng/riak_search,xuejianhai/riak,biddyweb/riak,yangchengjian/riak,xuejianhai/riak_search,basho/riak,laurenrother/riak,DavidAlphaFox/riak,authbox-lib/riak,elkingtonmcb/riak,basho/riak_search