hotfix the bug introduce by last release

update history for release

Merge pull request cloudwu#175 from cloudwu/dev

release 0.7.2

release 0.7.1

update history for 0.7.0

add testresponse

Merge pull request cloudwu#160 from cloudwu/dev

release v0.6.1

remove watch from service_mgr

release v0.5.2

update readme, add wiki link