Update faq-ch.md

add new faq about JDBC

Master

Feature/os

Master

Fmaster/lihui

Merge from develop into master

[update version info]

TD-1205 add error code to crash_gen.py

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Update faq-ch.md

Update cluster-ch.md

TD-1174: jdbc without host ip

fix two case of 'unexpected generic error in RPC'

Master

fix td-1189

[TD-1048]

Update cluster-ch.md

Update administrator-ch.md

Update insert-ch.md

Update Model-ch.md