v3.4.0

Main updates since v3.3.0:

Router:

1. Add RoutePullFunc() and RoutePushFunc()
2. RoutePull,RoutePush,RoutePullFunc and RoutePushFunc support return router path string
3. Fix unknown pull handler name

Meta:

1. MetaRerrorKey -> MetaRerror
2. Support ‘X-Accept-Body-Codec’ meta data

Rerror:

1. Add 401, 500 and 502 rerror code

Context:

1. Remove PluginContainer.PreWriteReply and PluginContainer. PostWriteReply’s out args
2. When there is a reply writing error, 500 Rerror code is returned
3. Fixed reply *Rerror bug

Plugin:

1. Update proxy plugin

Graceful:

1. Fix concurrent security bug

Log:

1. Adjust the location of the listen log

Utils:

1. Remove utils.ByteBuffer's Read and WriteTo methods