Core/Db/Conditions:

-Drop condition CONDITION_SPELL_SCRIPT_TARGET, use other condition types instead
-Change CONDITION_SOURCE_TYPE_SPELL_SCRIPT_TARGET to CONDITION_SOURCE_TYPE_SPELL_IMPLICIT_TARGET:
--allow using this condition for more spell implicit target types (not just ENTRY)
--SourceGroup value for this src type is now effMask and it's now required

Core/Spells: Unify the way implicit targets are handled, fully implement some partially implemented target types, fix some minor bugs found on the way, general improvements and cleanup.

src/server/game/Spells/SpellMgr.h

@@ -360,17 +360,6 @@ struct SpellThreatEntry
 
 typedef std::map<uint32, SpellThreatEntry> SpellThreatMap;
 
-// Spell script target related declarations (accessed using SpellMgr functions)
-enum SpellScriptTargetType
-{
-    SPELL_TARGET_TYPE_GAMEOBJECT = 0,
-    SPELL_TARGET_TYPE_CREATURE   = 1,
-    SPELL_TARGET_TYPE_DEAD       = 2,
-    SPELL_TARGET_TYPE_CONTROLLED = 3,
-};
-
-#define MAX_SPELL_TARGET_TYPE 4
-
 // coordinates for spells (accessed using SpellMgr functions)
 struct SpellTargetPosition
 {
@@ -726,6 +715,7 @@ class SpellMgr
         void LoadSpellAreas();
         void LoadSpellInfoStore();
         void UnloadSpellInfoStore();
+        void UnloadSpellInfoImplicitTargetConditionLists();
         void LoadSpellCustomAttr();
         void LoadDbcDataCorrections();