Add support for news item comment
ticket_form.php - missing close tag fix.

Missing close tag on line 633.
Merge pull request #3 from sinanislekdemir/patch-1

ticket_form.php - missing close tag fix.
Merge pull request #2 from Furgas/news-item-comment

Add support for news item comment
Audited and working fine with all type of request (GET/POST/DELETE)
Merge branch 'master' into Feature/PHPAPI-2
PHPAPI-2 : Add support for the knowledgebase API {nb}
Completed with knowledgebase comment (GET/POST/DELETE) request.

Signed-off-by: Saloni Dhall <saloni.dhall@kayako.com>