Adding ability for Bosco (campus factory) to limit held jobs

The campus factory added the feature to stop submitting to a down
or malfunctioning resource.  This commit adds that feature
to Bosco.

From the OSG Jira: http://jira.opensciencegrid.org/browse/CAMPUS-81
Update URLs in bosco_findplatform to bosco-1.1.2
Explicitly disable core file generation for Bosco installations.

From the OSG Jira: http://jira.opensciencegrid.org/browse/CAMPUS-83