== 2016-02-04 version 0.2.2

  - Update httpclient version


== 2015-06-24 version 0.2.1

  - Add secret option to apikey
  - Relax httpclient version


== 2014-12-17 version 0.2.0

  - Support v0.12
  - Improve buffer metric handling

== 2014-11-14 version 0.1.4

  - Update httpclient to 2.4.0

== 2014-07-04 version 0.1.3

  - Show `retry succeeded` message

== 2014-06-06 version 0.1.2

  - support log_level option
  - disable_node_info is true by default

== 2014-03-09 version 0.1.1

  - Catch an exception when can't get system metrics

== 2013-12-04 version 0.1.0

  - Add in_td_monitor_agent and out_td_counter

