Fix setting of default classes and initialize classes safely on server

apps/openmw-mp/Player.cpp

@@ -35,6 +35,7 @@ void Players::NewPlayer(RakNet::RakNetGUID id)
     players[id]->Npc()->blank();
     players[id]->NpcStats()->blank();
     players[id]->CreatureStats()->blank();
+    players[id]->klass.blank();
 
     for (int i = 0; i < mwmp::Networking::Get().MaxConnections(); i++)
     {

apps/openmw/mwmp/LocalPlayer.cpp

@@ -594,7 +594,7 @@ void LocalPlayer::SetClass()
     }
     else
     {
-        MWBase::Environment::get().getMechanicsManager()->setPlayerClass(klass);
+        MWBase::Environment::get().getMechanicsManager()->setPlayerClass(klass.mId);
         const ESM::Class *_klass = MWBase::Environment::get().getWorld()->getStore().get<ESM::Class>().find(klass.mId);
         if (_klass)
             MWBase::Environment::get().getWindowManager()->setPlayerClass(klass);