add rpc failover
add throw error
add failsafe option
add scheduler in rpc
add consistent hash route
update failure process
update ws-mailbox logger
fix socket connect error bug
upgrade to 0.3.3
update failProcess
update replaceServers
update logger
fix failover mode bug
upgrade to 0.4.0
add emit error
update default route
merge 0.4.0
remove toobusy
add reload for service
ignore idea folder