Added rivets stage to frontend - accessed via climbing up DK's ladder.
Added exit arrow to barrels stage (at top of DK ladder). Thanks to Justin De Lucia for this contribution.
Added START_STAGE option to settings (0=barrels, 1=rivets)
Added slot positions to rivets stage. There are now 88 slots in total (rivets starts from slot 48)
Added more hacks to romlist.csv and they appear by default on rivets stage.
Added patch file and icon for dkchorus so it could be added to frontend.