qml ex: disable the action button when there's no text to send
qml ex: disable the action button when there's no text to send

communi/communi-desktop,jpnurmi/communi-desktop,sevanteri/communi-desktop,communi/communi-desktop,communi/communi-symbian,communi/communi-symbian,communi/communi-symbian,gdamjan/communi-desktop,communi/communi-symbian