Support SSL/TLS client certificate files for jabber starttls
Support dynamic variable substituion for jabber starttls/proceed
Handle undefined cacertfile/keyfile/keypass/certfile attributes of jabber
fix set_scheme for ipv6
dynamically generated Host header must use square brackets for ipv6 addresses (TSUN-272)
Merge pull request #75 from teerapap/tls-jabber-client-cert

Support SSL/TLS client certificate file attributes for jabber starttls