Core/Entities: Ensure that pets retain their XP-points when dismissed in any form or way (outrunning/riding/mounting/flying)

Also clean up the logic a bit - pet stats initialization initializes hp/mana/powers on pets, while they should only be initialized/changed on pet call/creation.
Fixes issues 4284

--HG--
branch : trunk

src/server/game/Entities/Pet/Pet.cpp

@@ -228,18 +228,17 @@ bool Pet::LoadPetFromDB(Player* owner, uint32 petentry, uint32 petnumber, bool c
     }
 
     SetUInt32Value(UNIT_FIELD_PET_NAME_TIMESTAMP, uint32(time(NULL))); // cast can't be helped here
-    SetUInt32Value(UNIT_FIELD_PETEXPERIENCE, fields[5].GetUInt32());
     SetCreatorGUID(owner->GetGUID());
+    SetUInt32Value(UNIT_FIELD_PETEXPERIENCE, fields[5].GetUInt32());
+    SynchronizeLevelWithOwner();
 
     SetReactState(ReactStates(fields[6].GetUInt8()));
 
     SetCanModifyStats(true);
-    SynchronizeLevelWithOwner();
-    InitStatsForLevel(petlevel);
 
     if (getPetType() == SUMMON_PET && !current)              //all (?) summon pets come with full health when called, but not when they are current
     {
-        SetFullHealth();
+        InitStatsForLevel(petlevel);
         SetPower(POWER_MANA, GetMaxPower(POWER_MANA));
     }
     else
@@ -1197,7 +1196,6 @@ void Pet::_SaveSpells(SQLTransaction& trans)
             case PETSPELL_UNCHANGED:
                 continue;
         }
-
         itr->second.state = PETSPELL_UNCHANGED;
     }
 }

src/server/shared/Common.h

@@ -48,7 +48,7 @@
 #undef VERSION
 #endif //VERSION
 
-# include "config.h"
+# include "Config.h"
 
 #undef PACKAGE
 #undef PACKAGE_BUGREPORT