- TLS flag should be passed as 0 or 1, and not undef to prevent a warning
- The Net::XMPP::Client often sets an error code itself during connection failure, so display if possible
enable use of SRV record lookup on xmpp domain name
add option --sso to enable using system sso to authenticate to server
Merge pull request #4 from dmansfield/master

Fixes and enhancements. --sso option, SRV record lookup, tls flag.