add socketchannel:changhost
add socketchannel backup host
socketchannel backup support host/port
socketchannel backup support default port
fix typo
bugfix: socketchannel auth
don't support ip:port
bugfix: connect auth
simplify code
mongo driver support rs
Merge pull request #137 from bttscut/mongors

mongo driver support rs
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Merge branch 'mongors' into dev
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