#457 EJB 2.1 Timer implementation

[Tim McCune]

I saw on your JBoss 4 roadmap that you are planning to
implement the EJB 2.1 Timer APIs on top of Quartz. I
am running on JBoss 3.2.2, and needed a scheduling
service, so I did this. If you want to use this for
JBoss 4, I imagine you'll want to do more direct
container integration, but this implementation let me
also be independent of JBoss, so that's why I didn't.
Just thought you might find this useful.

[Tim McCune]