Changes from last LiveCD creation. git-svn-id: https://svn-agbkb.informatik.uni-bremen.de/Hets/trunk@10933 cec4b9c1-7d33-0410-9eda-942365e851bb

Changed the setup of environment variables. git-svn-id: https://svn-agbkb.informatik.uni-bremen.de/Hets/trunk@10016 cec4b9c1-7d33-0410-9eda-942365e851bb

Added LiveCD creation scripts, a readme file with instruction, and some xml files for livecd creation git-svn-id: https://svn-agbkb.informatik.uni-bremen.de/Hets/trunk@8387 cec4b9c1-7d33-0410-9eda-942365e851bb