Switch back to 'luajwt' in order to fix broken JWT

Temporarily reference 'luajwtjitsi' luarock for immediate
deployment until our changes with RS256 support
eventually get merged with the master

debian/jitsi-meet-tokens.postinst

                 sed -i 's/ --modules_enabled = { "token_verification" }/ modules_enabled = { "token_verification" }/g' $PROSODY_HOST_CONFIG
 
                 # Install luajwt
-                if ! luarocks install jwt; then
-                   echo "Failed to install jwt - try installing it manually"
+                if ! luarocks install luajwtjitsi; then
+                   echo "Failed to install luajwtjitsi - try installing it manually"
                 fi
 
                 if [ -x "/etc/init.d/prosody" ]; then

prosody-plugins/token/util.lib.lua

 -- Token authentication
 -- Copyright (C) 2015 Atlassian
 
-local jwt = require "jwt";
+local jwt = require "luajwtjitsi";
 
 local _M = {};