Events support added!

The latest release of jagzilla core includes support for events. Events are a better and more flexible functionallity than the asked mail sending. Jagzilla events let users of jagzilla customize actions taken on certain conditions of usage (ie: send a mail when a bug is modified).

The event system works in a property file configured where names of classes are added to different events.
A mail sending event on bug modification is included, which uses velocity for template processing.

The next version should have this functionallity properly implemented.

The current BugModificationAction could be easily customized to suit users need for mail at this moment.