Do not send empty message. fix #19
Do not send empty message. fix #19

bright-sparks/phpfreechat,jahanzaibbahadur/phpfreechat,kerphi/phpfreechat,bright-sparks/phpfreechat,jahanzaibbahadur/phpfreechat,MingJen/phpfreechat,MingJen/phpfreechat,MingJen/phpfreechat,jahanzaibbahadur/phpfreechat,kerphi/phpfreechat,bright-sparks/phpfreechat