*Fix usage of EffectValueMultiplier in spell code.

*Remove some obsolete code from spell class.
*Rename some spellmod and dbc column names to be more accurate.

--HG--
branch : trunk

src/server/game/Spells/Spell.h

@@ -546,7 +546,6 @@ class Spell
         Unit* m_originalCaster;                             // cached pointer for m_originalCaster, updated at Spell::UpdatePointers()
 
         Spell** m_selfContainer;                            // pointer to our spell container (if applicable)
-        Spell** m_triggeringContainer;                      // pointer to container with spell that has triggered us
 
         //Spell data
         SpellSchoolMask m_spellSchoolMask;                  // Spell school (can be overwrite for some spells (wand shoot for example)
@@ -598,7 +597,6 @@ class Spell
         // Damage and healing in effects need just calculate
         int32 m_damage;           // Damge   in effects count here
         int32 m_healing;          // Healing in effects count here
-        int32 m_healthLeech;      // Health leech in effects for all targets count here
 
         //******************************************
         // Spell trigger system