Fixes #3419: Use OpenJDK 7 JRE headless instead of regular one to reduce dependencies
Merge pull request #34 from Kegeruneku/ust_3395/int/3419_use_headless_jre_to_reduce_dependencies

Fixes #3419: Use OpenJDK 7 JRE headless instead of regular one to reduce...
Merge branch 'branches/rudder/2.4' into branches/rudder/2.5