Release Name: plus4emu-1.1.1

Notes:
Changes in version 1.1.1
------------------------

* added new 1541 timing code that fixes some programs that previously
did not load, at the expense of higher CPU usage; it is enabled by
default, and can be turned on/off in the floppy configuration dialog
* more accurate emulation of television vertical synchronization
* MacOS X build fixes; also added patch for FLTK 1.1.7 which fixes the
check callback on OS X
* improvements and fixes in TED video shift register emulation
* fixed CPU I/O port data direction register ($0000)
* the ROM package now includes the 1541 DOS, rather than the 1541-II;
however, it is still possible to use the 1541-II by loading
dos15412.rom to ROM segment 10 in the machine configuration
* minor optimizations