* add gzip support

* Sample operator code.

* Indicator aggregator framework.

* Provide some annotation for OAL.

* Remote module.

* Register service.

* Add apache license header.

* Ignore comments when load definition files.

* Added OpenAPM Badge to readme

* Update README.md

* Sample operator code.

* Indicator aggregator framework.

* Provide some annotation for OAL.

# 1447
Use `GET /api/v1/watch/namespaces/{namespace}/pods` api to watch pod's
containerIp which help collector containers to discovery each other.

* Receiver, aggregate, server finished.

@lemon @ascrutae I change the proto file path for preparing 6.0, but didn't change .net namespace. But I think if you sync the protocol submodule, you still need some changes.

Fix #1435

* #1447

Fixed the after method interceptor for the apache http client NPE error when the response is null cause by the doExecute method throw a exception.