first sketchup for multipart

disk directory and Makefile layout
remove leftover lines for LDCONFIG from Makefile
bmp2c64.c: add option for output segment
cc1541.c: unix line-endings and whitespace fixes
cc1541.c: start at track#17 when writing files

staying as close as possible to the directory speeds up loading of the
first files on disk
[broken] testing with loader code
Merge branch 'master' into multipart
Makefile fixes after merge
[WIP] make fastload.s actually work

- fixed one c&p error
Makefile fix: disk name and id were missing
loader finally works
better directory structure

start as fast as possible by placing the loader and the first part at the
top of the directory. this also kind of "hides" them ;)
bugfix: clear carry before adding 8 to cursor pos
loading of parts working
stabilize IRQ for opening top/bottom border

had to do this to get rid of flickering that appeared only after splitting
the demo in parts -- strange
avoid reloading parts when demo is restarted
"hybrid" bootloader

made kickstart autostart when loaded absolutely (,8,1), but still work
normally when loaded to $0801 (,8)
Merge branch 'multipart'