Poperly punt WoWPro_UpdateGuide when not WoWPro.GuideFrame:IsVisible()
Compute a meanlevel if not provided.
WorldEvents now can be GuideHoliday() or GuideWorldEvent()
Update WorldEvents AddInfo() to account for world events.
Merge branch 'master' of github.com:Jiyambi/WoW-Pro-Guides
Tighten sed pattern so Version and not Interface gets updated.
Reset Interface version to 60000.  Bad release script\!