1.6.2
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[+] bi-licensed: EPL / GPL
[+] operator is away status, show status on redirect/survey/operators pages
[+] Captcha - Leave Message
[+] groups page: last active column
[+] pre-chat survey, redirect page: show group status - online/offline/away
[!] do not show empty groups in redirect/survey
[!] compatibility with the latest mod_security rules
[+] performance options in settings: update intervals, operator online time threshold
[+] information messages: visitor navigated to ...
[!] html code in templates, better appearance in Safari