Fix various crashes when a client exits.

src/network/protocols/server_lobby_room_protocol.cpp

@@ -398,6 +398,8 @@ void ServerLobbyRoomProtocol::kartDisconnected(Event* event)
         sendMessage(msg);
         Log::info("ServerLobbyRoomProtocol", "Player disconnected : id %d",
                   peer->getPlayerProfile()->getPlayerID());
+        // Remove the profile from the peer (to avoid double free)
+        peer->setPlayerProfile(NULL);
         m_setup->removePlayer(peer->getPlayerProfile());
         STKHost::get()->removePeer(peer);
     }

src/network/stk_host.cpp

@@ -233,6 +233,7 @@ void STKHost::init()
  */
 STKHost::~STKHost()
 {
+    ProtocolManager::kill();
     // delete the game setup
     if (m_game_setup)
         delete m_game_setup;
@@ -247,7 +248,6 @@ STKHost::~STKHost()
 
     Network::closeLog();
     stopListening();
-    ProtocolManager::kill();
 
     delete m_network;
 }   // ~STKHost
@@ -295,11 +295,10 @@ void STKHost::deleteAllPeers()
  */
 void STKHost::abort()
 {
-    stopListening();
+    // Finish protocol manager first, to avoid that it access data
-    // FIXME: Why a reset here? This creates a new stk_host, which will open
+    // in STKHost.
-    // a new packet_log file (and therefore delete the previous file)???
-    // reset();
     ProtocolManager::getInstance()->abort();
+    stopListening();
 }   // abort
 
 // --------------------------------------------------------------------