Log Message:
Update irssi to 0.8.19

Changes:
v0.8.19 2016-03-23  The Irssi team <staff@irssi.org>
	- Fixed regression when joining and parting channels on IRCnet (#435)
	- Fixed SASL EXTERNAL (#432)
	- Fixed regression when not using SASL (#438)
	- Fixed incorrect SSL disconnects when using SSL from modules/scripts
	  (#439)
	- Fixed regression where proxy_string could not be configured or
	  certain file transfers could not be accepted (#445)
	- Fixed storing layout of !channels (#183)
	- Fixed restoration of bracketed paste mode on quit (#449)
	- Make the usage of meta-O for cursor keys configurable with
	      /set term_appkey_mode off

v0.8.18 2016-02-13  The Irssi team <staff@irssi.org>
	* Modules will now require to define a
	      void MODULENAME ## _abicheck(int *version)
	  method to ensure that they are compiled against the correct Irssi
	  version.
	* The signature of "message private" has been changed to
	      5: server, message, nick, address, target
	  in order to support "self messages". Module authors should
	  implement this change if they are using this signal.
	* Removing networks will now remove all attached servers and channels
          (#45).
	* The proxy module now has an /irssiproxy command.
	* sb_search has been moved to scripts.irssi.org
	* WIN32 has been completely removed (it had not been working and is
          lacking a maintainer.)
	* Garbage Collection support has been removed. This will hardly have any
	  effect for anyone given that it has been unsupported for several years.
	+ CAP SASL PLAIN login is now supported natively.
	+ Paste bracket markers can be requested from terminal with
	      /set paste_use_bracketed_mode on
	+ "Self messages" generated by some bouncers can now be received in the
	  proper window.
	+ Try to split long lines on spaces to avoid words being splitted. Adds
	  a new option: 'split_line_on_space' which defaults to on.
	+ Add setting hilight_nick_matches_everywhere (#56).
	+ The config parser is more robust and prints out better diagnostics on
	  incorrect config files.
	+ Ctrl+^ (FS#721) and Ctrl+J can now be bound.
	+ Command history can be cleared with /window history -clear
	+ /hilight -mask -line is now supported (FS#275).
	+ CHANTYPES are now supported.
	+ Improved reload speed of ignores.
	+ Add -date feature to /lastlog
	+ irssiproxy can be more easily enabled and disabled.
	+ Expando for hostname (FS#829).
	+ UNIX sockets can now also be specified in the config file.
	+ Disable SSLv3 due to the POODLE vulnerability.
	+ SSL ciphers can now be specified per server.
	+ Added SNI support for SSL.
	- /ignore now respects -pattern on merge (#78).
	- irssiproxy (BNC) module now uses correct line endings.
	- Fix missing lines on large pastes (FS#905).
	- Correctly preserve STATUSMSG prefixes (#291).
	- Fix infinite recursion in key bindings (FS#817).
	- Fix incomplete awaylog caused by buffering.
	- Fix calculation of UTF-8 string length display in some cases.
	- Fix some Perl warnings related to @ISA.
	- EXEC windowitems now get proper references on the Perl side.
	- Incremental help file improvements.
	- ANSI attributes are now properly reset.
	- Fixed regression where text would blink when terminal lacks color
          support.
	- Permit the usage of Freenode extban syntax in /ban (#150)
	- Fixed regression in scriptassist on unload of scripts.
	- Fixed regression in -actcolor %n