- Summoned NPCs will no longer give experience on kill. - Require quests Fel Spirits and Digging for Prayer Beads to be completed. - Reduce number of Foul Purges spawned in a single wave (only two should spawn each time). - Properly give quest credit when talking with Colonel Jules after the exorcism. (cherry picked from commit 0d70a7349d7b245adba72f9a15410a5b3d22dc77)