Translation transform added as configuration file

Hi Leonardo,
I made changes to the translation part, turning it into a configuration file so it's easier to alter it while only having to restart the script.
I considered reading the file on every request as needed, which would be nice since it would allow people to change the conf file on the run, but if that file gets to big or the requests come in too fast, it might eventually make the system slugginsh, so...
Can you please review?
Cheers