bz://590 changed filter arguments for riak_search_op_phrase filter function.  Changed where IndexName comes from.
bz://590 changed filter arguments for riak_search_op_phrase filter function.  Changed where IndexName comes from.

xuejianhai/riak_search,basho/riak_search,xuejianhai/riak_search,wwezhuimeng/riak_search,wwezhuimeng/riak_search,basho/riak_search