fix: ensure that edit/create/new for messages are only allowed when message is open for answering
fix: ensure that edit/create/new for messages are only allowed when message is open for answering

CountOrlok/cforum,CountOrlok/cforum,ckruse/cforum,MatthiasApsel/cforum,MatthiasApsel/cforum,ckruse/cforum,MatthiasApsel/cforum,CountOrlok/cforum,ckruse/cforum,CountOrlok/cforum,MatthiasApsel/cforum,ckruse/cforum