Doomsday Engine

When setting BIAS light source definitions I can set
the map like this:

Map = "e1m3|doom|iwad|doom1-ultimate"

But when setting map for anything else that format is
not understood, and I need to set it like this:

Map = "E1M3"

This makes it rather difficult to set up DEDs that
should only be active in specific pwads. I think the
DED code should be updated so that:
Map = "e1m3|doom|iwad|doom1-ultimate" formated strings
are understood by all other objects.