Log Message:
Update to hexchat-2.12.2. Add lua PKG_OPTION.

2.12.1 (2016-05-01)
    add lua plugin
    change desktop file to open urls in existing instance on Unix
    misc chanopt fixes
    misc identd fixes
    misc challengeauth fixes
    re-add support for old versions of libnotify
    update network list
2.12.0 (2016-03-12)
    add support for IRCv3.2
    add support for twitch.tv/membership cap
    add support for SNI (Server Name Indication)
    add ability to do DnD reordering in some settings dialogs
    add option to disable middle-click closing tabs
    rewrite sysinfo plugin
    rewrite identd plugin
    rewrite update plugin
    rewrite checksum plugin
    remove DH-{AES,BLOWFISH} mechanisms (insecure)
    remove  IRC  encoding, replaced with UTF-8
    remove  System Default  encoding, replaced with UTF-8
    remove configure option to disable ipv6
    remove msproxy and socks5 library support (unused)
    change tab-complete to favor other user nicks over own
    change url detection to support unicode
    change decoding to not attempt ISO-8859-1 fixing corruption
    change pluginpref to escape values
    minor changes to icons
    fix numerous crashes (but not #600)
    fix poor performance with nick indent enabled
    fix UTF-8 text in winamp plugin
    fix fishlim plugin handling networks with server-time
    fix logging hostname of users in new queries
    fix Key Press event sending non-UTF-8 text to plugins
    fix get_info( win_ptr ) from python
    fix running portable-mode from another directory
    fix duplicate timestamps on selection
    fix cfgdir argument
    fix mode-button text being cut off
    fix scrollback timestamps with server-time
    fix url handler accepting quoted paths with spaces
    fix using correct encoding when jumping networks
    improve DCC handling large files
    improve python detection in configure
    improve scrollback file handling (corruption, line endings)
    improve building in cygwin
    improve build options on unix to be more secure
    update translations
    update network list
2.10.2 (2014-11-25)
    verify hostnames of certificates
    use more secure openssl options (No SSLv2/3)
    detect utf8 urls in chat
    fix using multiple client certs at the same time
    fix checking for Perl on some distros
    fix friends list not properly updating
    fix building with format-security
    fix opening utf8 urls on Windows and OSX
    update deps on Windows
    update translations