[RELEASE] Released version 1.3.13.2

[RELEASE] Released version 1.3.13.2

Released version 1.3.13.2 with the following main changes :
    - assign connection timeouts to backend not frontend
    - bug: fix missing parenthesis in check_response_for_cacheability
    - bug: transparent proxy address was ignored in backend
    - bug: hot reconfiguration failed because of a wrong error check
    - bug: fix typo in redispatched connection
    - bug: connect_server: server might not exist when sending error report
    - bug: use backend's source and not server's source with tproxy
    - bug: log response byte count, not request
    - bug: fix truncated responses with sepoll