Additions:

* [tweak.carry] Support for Railcraft's Jukebox Carts (asie)

Bugs fixed:

* [#411] Config GUI not saving changes (asie)
* [tweak.carry] [#410] Railcraft bug (asie)
* [tweak.carry] Crash upon trying to pick up some Railcraft carts (asie)
* Potential system locale-related issues (asie)