Quartz dependency added in 8.0.6

[Jamie Johnson <je...@gmail.com>]

Sorry to double tap, but I think the dev list is the more appropriate place
for this.

While trying to update from TomEE 8.0.5 to 8.0.6 we started to have issues
with Quartz, specifically

Invocation of init method failed; nested exception is
java.lang.ClassCastException: org.quartz.impl.JobDetailImpl cannot be cast
to org.quartz.JobDetail

Now the version of Quartz that the application depends on is definitely old
and we are evaluating options for how to address, I was wondering if anyone
could help me understand the change.  I see that the change was introduced
as part of this PR

https://github.com/apache/tomee/pull/748/files

but there don't appear to be any code changes that would have necessitated
quartz being added.  Regardless, I am surprised that we are running into
this issue as I thought that TomEE/Tomcat would have loaded the version
from my application vs what is in /tomee/lib.  Any help would be appreciated