fixed issue with stackable items summoning with 0 charges
Added IsBuffSpell(spell_id). This will return true if the spell would end up having a duration, which will mean it would end up in one of the many buff windows on the client. This just makes sure the spell has a buffduration or buffdurationformula, which means the calculation will return a duration
Replaced all instances of CalcBuffDuration being used to determine if a spell was a buff with IsBuffSpell
Removed Mob::HasBuffIcon since it does the same thing IsBuffSpell does in a more convoluted way and had a rather missing leading name
Fixed issues that arose from the 10/03/2013 changes
Fixed more instances of AA timers being eaten

Every time I touch zone/AA.cpp to fix timers it gets uglier.
This should fix the bug reported here: http://www.peqtgc.com/phpBB3/viewtopic.php?f=17&t=14125
It should also fix AAs not being reset when it when you have no buff slots free (confirmed on live)
Simplify conditional linking with libdl
Merge pull request #83 from AMDmi3/patch-1

Simplify conditional linking with libdl