[Core] Fix Master Loot + Group Loot Issues - Part 2
Eluna: Implement GetRow core side
Loot Handler fix, last revision

- Fixing bugs on loot handler for groups looting modes.
- Send now message to the client whenever he must not be able to pick-up the loot.
- When assigned to a player, an item in master loot mode can't be stolen anymore.
- When a roll is won by a player for a given object, nobody else can get the loot anymore.
- Fixing a core crash bug with Roll for Rare Vein mechanism.
Merge pull request #243 from Warkdev/Rel20

[Core] Loot Handler fix, last revision
Merge pull request #242 from Rochet2/Rel20

[Eluna] Implement GetRow core side
fix various creature despawn problems
Fixing Group Loot bugs

- When people are in group, quest items were not pickable because of missing break.
- When people are in group, not in master loot mode, the creatures which have been looted once may not be accessible to other like it should have been.

Bot of them are now fixed.
Merge pull request #245 from Warkdev/Rel20

When people are in group, quest items were not packable because of missing break.
When people are in group, not in master loot mode, the creatures which have been looted once may not be accessible to other like it should have been.
Merge pull request #244 from Evildead666/Rel20

fix various creature despawn problems:
- creatures not despawning after being skinned
- Unlooted creatures have the same despawn time as looted ones
- Rate.Corpse.Decay.Looted have no effect at all
[Core] Corrected Cast for trainer levels. Thanks to Rochet for pointing
[Core] Fix some warnings
[Build] Updated build defs. Thanks to Rochet for pointing
Fixing quest items impossible to loot when loot mode is master loot
Merge pull request #246 from Warkdev/Rel20

Fixing quest items impossible to loot when loot mode is master loot
Fixing Master Loot for already assigned item to players who had full bags.

A bug was still present, master looters assigning items to players with full inventory
were still able to change the target if they wanted to. Now, only the winner will be able
to pick up the loot once it's assigned.
Merge pull request #247 from Warkdev/Rel20

Fixing Master Loot for already assigned item to players who had full bags
[Eluna] Update Eluna version
Critical chances and dodge chances are incorrect for low levels. Thanks to Salja.

This formula was initially done by Salja, I only inserted it into the core.

Base formula was wrong, although this one is better, I've no source.
Merge pull request #248 from Warkdev/Rel20

[Core] Critical chances and dodge chances are incorrect for low levels. Thanks ...
Fixing group loot issue + chest loot issues

- Single players in group looting object above the quality of the treshold must now be able to loot them.
- Chests will now be excluded from the roll system, but not from the master loot system.
- Chests will now appear as "open" when a player has open it. Client will now display an error message in such case.
- Two players won't be able to open a chest simultanesouly like it was the case.
- Players will now appear as "looting" to other players while looting a chest.