Couple of fixes and a new feature for bank/GB (#25)

* Exclude crafting spells using Fel Blood

Updated cost calculation to exclude spells using Fel Blood in crafting.

* Epoch lua error fix

* Slow mail loot when low FPS to avoid double looting

* Allowing withdrawing items from bank/GB using "AH shortfall" to withdraw based on post cap and now ALSO minPrice of those items has to be above current DBMinBuyout.

* Fixing an infinite loop bug with invalid custom price of Default Craft Value Method

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Co-authored-by: Szyler <Szyler@Szyler.com>

TradeSkillMaster_Mailing/Modules/Inbox.lua

@@ -711,7 +711,7 @@ function Inbox:UI_ERROR_MESSAGE(event, msg)
 			return
 		end
 
-		TSMAPI:CreateTimeDelay("mailWaitDelay", 0.3, private.AutoLoot)
+		TSMAPI:CreateTimeDelay("mailWaitDelay", math.max(5/GetFramerate(), 0.3), private.AutoLoot)
 	end
 end