A small bugfix release.

Finally runs on Redhat - and has forces for DFT!

Three new tutorials have been published, including one on single electron transistor calculations with ATK 2010.01!

This version is mainly a bug-fix release. Most notably it solves a threading problem, making it an essential update for all users.

The Windows version of ATK 2009.12 released earlier this week was missing one library component. Users experiencing installation problems should download the new build (3643) and re-install ATK.