v0.9.23

- numerous bug fixes
 - wtv-setup + bgmusic
  - wtv-setup pages thanks to https://github.com/JarHead4
  - wtv-backgroundmusic support
  - keyboard and text size settings support
  - removed small midi music demo in favor of backgroundmusic system

zefie_wtvp_minisrv/ServiceVault/wtv-setup/validate-mail-signature.js

@@ -0,0 +1,10 @@
+if (request_headers.query && ssid_sessions[socket.ssid]) {
+    ssid_sessions[socket.ssid].setSessionData("subscriber_signature", (request_headers.query.mail_signature) ? request_headers.query.mail_signature : "");
+    ssid_sessions[socket.ssid].saveSessionData();
+    headers = `200 OK
+Content-type: text/html`
+} else {
+    var outdata = doErrorPage();
+    headers = outdata[0];
+    data = outdata[1];
+}