fixed link to epic super bowser world
tell the user where we saved file was created
savegame hack for epicbowserworld
ensure pre-requisites for building koopa are properly checked
save game hack for newer holiday special
with newer 1.02 stage 03-06/03-07 are fixed
save game hack for new super mario bros. 4
remove no longer needed patch-file
fix downloading newer smbw
move nsmbw version-detection into a function (no duplicated code)