swamp 1.5.8 released

We released swamp 1.5.8 with various enhancements, see below. Source download is available at sourceforge and RPMs are available at the openSUSE buildservice: http://download.opensuse.org/repositories/swamp

The demo system (http://swampdemo.suse.de) has also been updated to the new version.

New features in 1.5.8:
- Executor for external programs/scripts can set a timeout
- Added a Task cache for active tasks
- Tasks have a persistant id on re-activation
- Re-worked role implementation, adding possibility to reference to groups
from the database backend (see UPGRADING file for the new xml schema)
- SOAPSWAMP: Fix datatype problems
- added HTML datatype with validation through jTidy
- reworked graph generation layout
- Using Ajax on index page to load individual tasks in background while page is already useable
- All workflow stacks are loaded via ajax (good improvement for deep stacks)