Finalisation of the Alarm API and development. Alarm can now do everything...

Finalisation of the Alarm API and development. Alarm can now do everything there were meant to be. Sense problems through activities, report problems in a nice way, and solve problems. They can be used as a simple cron but not only.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@18563 20353a03-c40f-0410-a6d1-a30d3c3de9de