Remove colon from reply message

packages/rocketchat-lib/client/MessageAction.coffee

@@ -90,7 +90,7 @@ Meteor.startup ->
 			message = @_arguments[1]
 			input = instance.find('.input-message')
 			url = RocketChat.MessageAction.getPermaLink(message._id)
-			text = '[ ](' + url + ') @' + message.u.username + ': '
+			text = '[ ](' + url + ') @' + message.u.username + ' '
 			if input.value
 				input.value += if input.value.endsWith(' ') then '' else ' '
 			input.value += text