Removed tilemap_dispose call and fixed the two drivers that were using it.
This fixes improper save state registrations in megasys1 and ygv608 games.
Fixed bug that caused the sound cores to keep running while paused.
Added discrete emulation of the background music for Indian Battle.
Fixed tilemap priorities in Magic Bubble. [Pierpaolo Prazzoli]
Cleaned up MESS hooks into the input port system. [Nathan Woods]
Major Namco sound improvements: [R. Belmont]
* C352 now sets output pitch correctly by input clock
* Added emulated sound and music to all NB-1, NB-2,
and System 11 games, using Prop Cycle's BIOS as a
substitute until the original can be trojaned or
* Hooked it up for plain System 22 games as well, but
they're not interested in passing down proper commands
for some reason
* Speed-cheated all instances of the M37710/C352 sound
system so CPU requirements don't go up much. This
also helped back off the requirements a hair for Prop
Cycle and Time Crisis
New clones added
Magic Bubble (Adult version) [David Haywood]
Dynamite Dux (set 1, 8751 317-0095) [Arzeno Fabrice, David Haywood]
The wise man knows when he does not know enough