Updated rollItem() method, deprecated several classes

no longer using LootItemMagic, LootItemMundane, LootList, and
LootListNoDuplicates anywhere, so @deprecated them.

-Lootbuilder: cleaned up rollItems() a little to match other rolling
methods;

-LootCalc:
- renamed several variables to be consistent throughout the class
(rolled to dRoll)
-updated rollItem(): now makes proper table calls for determining
ItemType(armor, weapons, potions,...).  catches mundane items before
trying magic item generation.  TODO: needs roll qualities of the item,
and other such things.