Core/GuardAI: Guards don't evade if the target casts Vanish and also can detect players with Feign Death.

Core/Scripts: Moved scripts from ScriptedGuardAI to guards.cpp
Core/Creature: Removed custom npcflags UNIT_NPC_FLAG_GUARD (now moved to flag_extras) and UNIT_NPC_FLAG_OUTDOORPVP (not used)

Thanks to Kaelima, Xanadu, Shauren and linencloth.

Signed-off-by: Manuel Carrasco <[email protected]>

sql/updates/world/2011_02_10_3_world_creature_template.sql

@@ -0,0 +1,2 @@
+UPDATE `creature_template` SET `flags_extra`=`flags_extra`|0x00008000,`npcflag`=`npcflag`&~0x10000000 WHERE `npcflag` & 0x10000000;
+UPDATE `creature_template` SET `npcflag`=`npcflag`&~0x20000000 WHERE `npcflag` & 0x20000000;

sql/updates/world/2011_02_10_4_world_scriptname.sql

@@ -0,0 +1,2 @@
+UPDATE `creature_template` SET `ScriptName`='' WHERE `ScriptName` LIKE 'guard_generic' AND (`spell1`=0 AND `spell2`=0);
+UPDATE `creature_template` SET `ScriptName`='guard_generic' WHERE `ScriptName`='guard_stormwind' OR `ScriptName`='guard_orgrimmar';