Added composer.json for the Composer pack. system
Added composer.json for the Composer pack. system

Now, PHP Free Chat can be distributed via composer packaging system.

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