add text/html for message content-type

* bria uses it

kamailio/message-role.cfg

@@ -12,7 +12,8 @@ route[HANDLE_MESSAGE]
        sl_send_reply("403", "Forbidden");
        exit;
     } else {
-       if($hdr(Content-Type) == "text/plain") {
+       if($hdr(Content-Type) == "text/plain" ||
+          $hdr(Content-Type) == "text/html") {
            route(MESSAGE_INBOUND);
        } else {
            xlog("L_WARN", "$ci|end|dropping MESSAGE $hdr(Content-Type)\n");
@@ -50,7 +51,7 @@ event_route[kazoo:consumer-event-sms-outbound]
     $uac_req(furi) = $var(from_uri);
     $uac_req(ouri) = "sip:127.0.0.1:5090;transport=tcp";
     $uac_req(callid) = $(kzE{kz.json,Message-ID});
-    xlog("L_INFO", "$(kzE{kz.json,Call-ID})|log|sending message from $var(from_uri) to $var(to_uri) \n");
+    xlog("L_INFO", "$(kzE{kz.json,Message-ID})|log|sending message from $var(from_uri) to $var(to_uri) \n");
     uac_req_send();
 }