[10369] Implement UNORDERED_SET support.

[newsbot]

<pre>m src/framework/Utilities/UnorderedMap.h
m src/game/ObjectGuid.h
m src/shared/revision_nr.h
</pre>
<pre style='white-space:pre-wrap;width:81ex'>[10369] Implement UNORDERED_SET support.

Signed-off-by: VladimirMangos <vladimir@getmangos.com>

Also added compatibility code for old Visual Studio versions
for non standard way hash calculation for hash_set.

Thanks to Lynx3D for help in Unix side testing.</pre>




Дальше... (http://github.com/mangos/mangos/commit/61ad4c7043ed673498c0db8ce4e3adff4f44fc45)