Automatic DSO cleaning

ResManager::~ResManager ()
{
   cleanDSO();  // Add this
   purge ();
   ...

struct CacheEntry {
   ResourceObject *  mFileObject;
   const char *      mFileName;
   
   CacheEntry() {
      mFileObject = 0;
      mFileName = 0;
   };
};

bool ResManager::cleanDSO()
{
   ResourceObject *match = NULL;
   const char *name;
   Vector<CacheEntry> files;

   match = ResourceManager->findMatch("*.dso", &name, NULL);
   while (match)
   {
      if(match->flags & ResourceObject::File)
      {
         CacheEntry entry;
         entry.mFileObject = match;

         // get out of vfs...
         char fileName[1024];
         dSprintf(fileName, sizeof(fileName), "%s/%s", match->path, match->name);

         entry.mFileName = StringTable->insert(fileName);
         files.push_back(entry);
      }
      
      match = ResourceManager->findMatch("*.dso", &name, match);
   }
   
   for(S32 i = files.size() - 1; i >= 0; i--)
   {
      char buf[1024];
      dSprintf(buf, sizeof(buf), "%s/%s", files[i].mFileObject->path, files[i].mFileObject->name);

      // delete the file
      ResourceManager->freeResource(files[i].mFileObject);

      // no sneaky names
      if(!dStrstr(files[i].mFileName, ".."))
      {
         dFileDelete(files[i].mFileName);
      }

      files.pop_back();
   }

   return true;
}

bool openFileForWrite(FileStream &fs, const char *fileName, U32 accessMode = 1);
   bool cleanDSO(); // Add this