* pandoradb_data.sql: Updated version, added two new module groups and
some cleanup.
* pandoradb.sql: Added cascade_protection field in tagente and removed
old server information from 2.x scheme.
* extras/pandoradb_migrate_v2.x_to_v3.0.sql: Added new fields (trecon_task
and tagente) and drop old server information from tagente table.
* configurar_agente.php, agent_manager.php: Added cascade protection
GUI checkbox and logic.
* images/help: Added graph directory for help.
* help/en/cascade_protection.php: Added help topic.
git-svn-id: https://svn.code.sf.net/p/pandora/code/trunk@1898 c3f86ba8-e40f-0410-aaad-9ba5e7f4b01f
slerena