Fixed: Always include local extensions in CGameManager::IsGame()
[Confluence] Don't show video progress bar if player has no duration (always stuck at 0:00:00)
Savestates gui work
Revert "Added CFileItemList::Reverse(), thin wrapper for std::reverse() on the list of file items"

This reverts commit aebd93849e8798491446fe84c424f1215886af55.
Savegames gui sort by date and other changes