Convert from WoWPro:NextStep() to WoWPro.NextStep().  Get rid of unused WoWPro:NextStepX()
Fix WoWPro:UpdateQuestTracker to deal with multiple QIDs
Convert to using new NextStep().  Add multi-QID handling to partial completions.
Events needs functions from Broker
Merge branch 'master' of github.com:Jiyambi/WoW-Pro-Guides
Remove bad references to self in NextStep.