Feature/os

Feature/query

Bugfix/td-1142

Update connector-ch.md

change format

in singe table subscription, after consume all data, the next call to consume crash both client and server.

this commit fix the issue.

try to solve sync problem

inotfiy events

Update connector-ch.md

add notification message before return

Update connector-ch.md

Add taosdemo into daily test

TD-1057 set crash in windows

Update administrator-ch.md

update java subscription interface

Hotfix/test

add cii best practice badge.