map<string, map<string, int> >::iterator itFile;
vector<string> filenames;
for(itFile = fileToPriority.begin(); itFile != fileToPriority.end(); itFile++) { filenames.push_back(itFile->first); }
map<string, map<string, int> >::iterator itFile;
vector<string> filenames;
for(itFile = fileToPriority.begin(); itFile != fileToPriority.end(); itFile++) { filenames.push_back(itFile->first); }