Merge branch 'rpcfrontier' into develop

core/block_processor.go

core/chain_makers.go

core/chain_manager.go

core/events.go

core/filter.go

core/types/common.go

event/filter/eth_filter.go

rpc/api.go

rpc/args.go

rpc/args_test.go

rpc/http.go

rpc/util.go