Log Message:
	* Fix a freeze with UTF-8 locales
	Some commands were causing a freeze when there was a trailing space
	in the command line.
	* The current ssl_verify value is used in /connect (no need to restart
	 mcabber)
	* System messages are not blocked anymore when the option
	"block_unsubscribed" is set
	* Do not enter chat mode after command "/del" or when somebody joins \ 
a room
	* Display mcabber version in the status window (when chat mode is disabled)
	(Suggested by pmw & hednod)
	* Small code cleanup and a few cosmetic changes