Necromancer

For the necromancer updates...

• Delete deadeye from game, replace with detect invis
• Remove aurole view, replace with detect magic
• remove pison bolt
• armor of undeath (lower to level 45)
• use harmshield? (level tbd)
• add cadaver drain (drain mana from corpse) (not all corpses drainable, detect magic will show) (amount drainable determiend by level of corpse, and how much drained per cast by caster level)
• all different rot spells to uniform name
• all diff vamp touch spells to uniform name
• remove bone walk
• use blood rite
• step into shadow? (teleport in shadows)