[RCU] New translation system for Roundcube

Hello folks

After building and maintaining our own translation tool for some time we now moved to the translation service at launchpad.net. This makes it a lot easier for many people to contribute side by side and the launchpad system even makes suggestions from translations of other open source projects.

So from now on, we'd like you to go directly to https://translations.launchpad.net/roundcubemail/trunk for any translation work. If you visit that page now you can see the (partially very poor) completeness status of our 75 languages. I'd like to encourage everybody once again to participate and to help us complete all the translations we currently have on the list.

Many thanks for you help!

Regards, Thomas