SC ensemble peers should wait for riak_kv service
add riak_kv_vnode:handle_overload_info/2
fix line #s for riak_kv_vnode in dialyzer.ignore-warnings
Merge pull request #994 from basho/bugfix/handle-sc-vnode-overload

add riak_kv_vnode:handle_overload_info/2

Reviewed-by: kellymclaughlin
Merge pull request #989 from basho/feature/dont-start-peer-until-backend-ready

SC ensemble peers should wait for riak_kv service

Reviewed-by: lordnull