fix(nameserver): panic in nameserver size is changed. (apache#529)

Support log level set and add more log in offset. (apache#489)

* Add log print for offset manager by broker

* modify log level for offset

* Support log level set

[ISSUE apache#473] support nsresolver in TraceConfig

keep NamesrvAddrs config and add Resolver for TraceConfig

[ISSUE apache#473] support nsresolver in TraceConfig

keep NamesrvAddrs config and add Resolver for TraceConfig

feat: support nameserver resolver (apache#457)

use nameserver resolver instead of nameserver address, we can pass
passThrough for direct address, httpResolver for a domain, an env resolver
for env param.

modify version and readme to release 2.0.0 (apache#469)

fix(producer): update name server address immediately when client sta…

…rt ; or end up with a failed publish (apache#436)

[ISSUE apache#354] feat: Support PanicHandler (apache#355)

* feat: Support PanicHandler

Closes apache#354

[ISSUE apache#301] Adding GET_CONSUMER_RUNNING_INFO (apache#311)

* Adding GET_CONSUMER_RUNNING_INFO impl

* add Marshal ConsumerRunningInfo Test Case

fix(transaction):can not do local execute and check (apache#262)