Functions for starting and stopping daemons and fuses now expect the
type 'void (*func)()'. Only a few functions in XRogue needed to be
modified to fit. Determining the type of the argument is left for a
later date.
Building with GCC5 should now produce less than 200 lines of warnings
per game.
Almost 1500 lines of compiler warnings remain, and the GCC developers
are already working on a new version with even more warnings turned on
by default.
