Merge branch 'master' of https://github.com/TrinityCore/TrinityCore into 4.3.4

Conflicts:
	src/server/game/Achievements/AchievementMgr.cpp
	src/server/game/Battlefield/Battlefield.h
	src/server/game/Battlegrounds/ArenaScore.h
	src/server/game/Battlegrounds/ArenaTeam.cpp
	src/server/game/Battlegrounds/ArenaTeam.h
	src/server/game/Battlegrounds/ArenaTeamMgr.cpp
	src/server/game/Battlegrounds/BattlegroundMgr.cpp
	src/server/game/Battlegrounds/BattlegroundMgr.h
	src/server/game/Battlegrounds/BattlegroundQueue.h
	src/server/game/Battlegrounds/BattlegroundScore.h
	src/server/game/Battlegrounds/Zones/BattlegroundAB.h
	src/server/game/Battlegrounds/Zones/BattlegroundAV.h
	src/server/game/Battlegrounds/Zones/BattlegroundEY.h
	src/server/game/Battlegrounds/Zones/BattlegroundIC.h
	src/server/game/Battlegrounds/Zones/BattlegroundSA.h
	src/server/game/Battlegrounds/Zones/BattlegroundWS.h
	src/server/game/DungeonFinding/LFG.h
	src/server/game/DungeonFinding/LFGMgr.cpp
	src/server/game/DungeonFinding/LFGMgr.h
	src/server/game/DungeonFinding/LFGQueue.cpp
	src/server/game/DungeonFinding/LFGQueue.h
	src/server/game/Entities/Corpse/Corpse.cpp
	src/server/game/Entities/Creature/Creature.cpp
	src/server/game/Entities/Creature/GossipDef.cpp
	src/server/game/Entities/Creature/GossipDef.h
	src/server/game/Entities/Creature/TemporarySummon.cpp
	src/server/game/Entities/DynamicObject/DynamicObject.cpp
	src/server/game/Entities/Object/Object.cpp
	src/server/game/Entities/Object/Object.h
	src/server/game/Entities/Object/ObjectDefines.h
	src/server/game/Entities/Object/Updates/UpdateData.cpp
	src/server/game/Entities/Player/Player.cpp
	src/server/game/Entities/Player/Player.h
	src/server/game/Entities/Unit/Unit.cpp
	src/server/game/Entities/Unit/Unit.h
	src/server/game/Globals/ObjectAccessor.cpp
	src/server/game/Globals/ObjectAccessor.h
	src/server/game/Globals/ObjectMgr.cpp
	src/server/game/Groups/Group.cpp
	src/server/game/Groups/Group.h
	src/server/game/Guilds/Guild.cpp
	src/server/game/Guilds/Guild.h
	src/server/game/Handlers/AuctionHouseHandler.cpp
	src/server/game/Handlers/BattleGroundHandler.cpp
	src/server/game/Handlers/CalendarHandler.cpp
	src/server/game/Handlers/CharacterHandler.cpp
	src/server/game/Handlers/ChatHandler.cpp
	src/server/game/Handlers/GroupHandler.cpp
	src/server/game/Handlers/GuildHandler.cpp
	src/server/game/Handlers/ItemHandler.cpp
	src/server/game/Handlers/LFGHandler.cpp
	src/server/game/Handlers/MailHandler.cpp
	src/server/game/Handlers/MiscHandler.cpp
	src/server/game/Handlers/MovementHandler.cpp
	src/server/game/Handlers/NPCHandler.cpp
	src/server/game/Handlers/PetHandler.cpp
	src/server/game/Handlers/QueryHandler.cpp
	src/server/game/Handlers/QuestHandler.cpp
	src/server/game/Handlers/TradeHandler.cpp
	src/server/game/Handlers/VehicleHandler.cpp
	src/server/game/Movement/Spline/MoveSplineInit.cpp
	src/server/game/Server/WorldSession.cpp
	src/server/game/Server/WorldSession.h
	src/server/game/Spells/Spell.cpp
	src/server/scripts/Commands/cs_debug.cpp
	src/server/scripts/Commands/cs_gm.cpp
	src/server/scripts/Commands/cs_misc.cpp
	src/server/scripts/Commands/cs_modify.cpp
	src/server/scripts/Commands/cs_reset.cpp
	src/server/scripts/EasternKingdoms/ZulAman/boss_akilzon.cpp
	src/server/scripts/EasternKingdoms/ZulAman/boss_halazzi.cpp
	src/server/scripts/EasternKingdoms/ZulAman/boss_hexlord.cpp
	src/server/scripts/EasternKingdoms/ZulAman/boss_janalai.cpp
	src/server/scripts/EasternKingdoms/ZulAman/boss_zuljin.cpp
	src/server/scripts/EasternKingdoms/ZulAman/instance_zulaman.cpp
	src/server/scripts/EasternKingdoms/ZulAman/zulaman.cpp
	src/server/scripts/EasternKingdoms/ZulGurub/boss_arlokk.cpp
	src/server/scripts/EasternKingdoms/ZulGurub/boss_jindo.cpp
	src/server/scripts/EasternKingdoms/ZulGurub/boss_mandokir.cpp
	src/server/scripts/EasternKingdoms/ZulGurub/boss_thekal.cpp
	src/server/scripts/EasternKingdoms/ZulGurub/instance_zulgurub.cpp
	src/server/scripts/EasternKingdoms/zone_silverpine_forest.cpp
	src/server/scripts/EasternKingdoms/zone_stormwind_city.cpp
	src/server/scripts/EasternKingdoms/zone_swamp_of_sorrows.cpp
	src/server/scripts/EasternKingdoms/zone_tirisfal_glades.cpp
	src/server/scripts/Kalimdor/zone_azshara.cpp
	src/server/scripts/Kalimdor/zone_durotar.cpp
	src/server/scripts/Kalimdor/zone_moonglade.cpp
	src/server/scripts/Kalimdor/zone_orgrimmar.cpp
	src/server/scripts/Kalimdor/zone_ungoro_crater.cpp
	src/server/scripts/Northrend/FrozenHalls/HallsOfReflection/halls_of_reflection.cpp
	src/server/scripts/Northrend/IcecrownCitadel/boss_the_lich_king.cpp
	src/server/scripts/Northrend/Naxxramas/boss_kelthuzad.cpp
	src/server/scripts/OutdoorPvP/OutdoorPvPEP.cpp
	src/server/scripts/Spells/spell_dk.cpp
	src/server/scripts/Spells/spell_generic.cpp
	src/server/shared/Packets/ByteBuffer.h

src/server/shared/Utilities/Util.cpp

@@ -294,7 +294,7 @@ size_t utf8length(std::string& utf8str)
     }
     catch(std::exception)
     {
-        utf8str = "";
+        utf8str.clear();
         return 0;
     }
 }
@@ -316,7 +316,7 @@ void utf8truncate(std::string& utf8str, size_t len)
     }
     catch(std::exception)
     {
-        utf8str = "";
+        utf8str.clear();
     }
 }
 
@@ -360,7 +360,7 @@ bool Utf8toWStr(const std::string& utf8str, std::wstring& wstr)
     }
     catch(std::exception)
     {
-        wstr = L"";
+        wstr.clear();
         return false;
     }
 
@@ -383,14 +383,14 @@ bool WStrToUtf8(wchar_t* wstr, size_t size, std::string& utf8str)
     }
     catch(std::exception)
     {
-        utf8str = "";
+        utf8str.clear();
         return false;
     }
 
     return true;
 }
 
-bool WStrToUtf8(std::wstring wstr, std::string& utf8str)
+bool WStrToUtf8(std::wstring const& wstr, std::string& utf8str)
 {
     try
     {
@@ -406,7 +406,7 @@ bool WStrToUtf8(std::wstring wstr, std::string& utf8str)
     }
     catch(std::exception)
     {
-        utf8str = "";
+        utf8str.clear();
         return false;
     }
 
@@ -415,7 +415,7 @@ bool WStrToUtf8(std::wstring wstr, std::string& utf8str)
 
 typedef wchar_t const* const* wstrlist;
 
-std::wstring GetMainPartOfName(std::wstring wname, uint32 declension)
+std::wstring GetMainPartOfName(std::wstring const& wname, uint32 declension)
 {
     // supported only Cyrillic cases
     if (wname.size() < 1 || !isCyrillicCharacter(wname[0]) || declension > 5)
@@ -492,7 +492,7 @@ bool consoleToUtf8(const std::string& conStr, std::string& utf8str)
 #endif
 }
 
-bool Utf8FitTo(const std::string& str, std::wstring search)
+bool Utf8FitTo(const std::string& str, std::wstring const& search)
 {
     std::wstring temp;