SAK-20885 Load quartz configuration from sakai.home as well.

So this changes the loading of quartz configuration to also look for a file in sakai.home called sakai.quartz.properties.

git-svn-id: https://source.sakaiproject.org/svn/jobscheduler/trunk@124197 66ffb92e-73f9-0310-93c1-f5514f145a0a