-Moved midi handling in base class
-Cleaned running_machine of information of next machine
-All is cleaned after exiting of running_machine so debugger window is removed as well till next machine is started
-Made osdmini to compile
Moved delegates into /src/lib/util to enable usage of delegates in other project parts
Moved mame_printf_* calls into /src/osd/osdcore.c and renamed them to osd_printf_*
Changed mess.mak to display compilation of ymmu100.ppm nicely