release 2.5.1

Bugfix: Stargate service node registration path must be in lowercase (b…

…aidu#96)

Currently only the service name is converted to lowercase. We should do
the same on group and version as well.

add serviceId to NamingOptions (baidu#92)

* bugfix: healthy checktimer checks instances which are deleted by NamingService

* add serviceId to NamingOptions

release 2.4.5

Merge branch 'master' of https://github.com/baidu/brpc-java

bugfix: remove noused kv attachments when A->B->C

release 2.4.2

release 2.4.1

1. add support for spring boot starter, spring cloud.

2. use spi to refactor protocol/naming/loadbalance extension.
3. remove shared threadpool for client and server.
4. fix some bugs.

1. support new protocols: public pbrpc, stargate.

2. add trace fileds.
3. different service can set its own thread pool.
4. add consul naming service.
5. RpcContext can set different runtime rpc configs, such as readTimeout.
6. refactor load balance interceptor, so that user can set custom load balance interceptor, such as ribbon.
7. http json client can talk with server which using brpc standard protocol.
8. fix some bugs, like naming update failed etc.