Merge pull request sogou#578 from Barenboim/master

remove mutex from LRUCache

Merge pull request sogou#520 from Barenboim/master

fix bug when IPv6 nameserver in resolv.conf

Windows branch recent update:

1. add WFMailboxTask and WFConditional;
2. fix SSLWrapper feedback;update ServiceSSLWrapper;
3. fix crash on Windows branch for use session after deleted;
4. fix Redis double SELECTs problem;
5. skip query check when parsing URI;
6. optimize CommSchedGroup target selection;
7. add a new timer factory function to support long timer;
8. update cmake build directory;

Merge pull request sogou#402 from Barenboim/master

add MySQL SSL client

add define guard for WFMySQLConnection.h (sogou#335)

Merge pull request sogou#295 from holmes1412/master

fix mysql as_int() as_ulonglong() length bug and rollback version 0.9.4

version to 0.9.3

Update tutorial-01-wget.md

Add some English documents. (sogou#80)

* update 08, 09 tutorials in English version

* add about-upstream.md

* update tutorial-12-mysql_cli.md

* Update tutorial-10-user_defined_protocol.md

Merge pull request #25 from holmes1412/master

Update English version README.md