Log Message:
Changes 20050322:
 - fixed the problem with Ticks getting incremented on every interrupt, not
   just 60Hz (e.g. moving the mouse made the caret blink faster)
 - Unix: integrated JIT compiler for Linux/x86 and FreeBSD/x86
 - Unix: moved minimum autoconf support to 2.52+
 - Unix: add large file support for 2+ GB hard disk images
 - Unix: cleaned up pthread attributes [Brian Johnson]
 - Unix: fixed floppy problems under Linux
 - Unix: implemented "ignoresegv" feature on Linux/x86, Linux/ppc, \ 
Darwin/ppc
 - Unix: serial port baud rates are now set correctly
 - Unix: it is now possible to make the serial drivers pipe their input/output
   to programs by using a '|' followed by a command line as the modem or
   printer port setting (instead of a device name like '/dev/ttyS0')
 - Unix: the option "--config FILE" tells B2 to use a different config file
 - Unix: new prefs options "dsp" and "mixer" to set the OSS \ 
device names
   instead of the hardcoded '/dev/dsp' and '/dev/mixer'
 - Unix: new ether prefs option 'tun' to use a TUN/TAP interface. The
   configure script used can be overriden with "etherconfig"
 - Unix: SDL audio and video output are now available in option
 - Unix: port JIT compiler to Linux/x86_64 (AMD64 and EM64T platforms)
 - Unix: sheep_net driver ported to kernel 2.6 (patches from Mac-On-Linux)
 - Unix: fix network code to work correctly on 64-bit platforms
 - Unix: implement X11 to MacOS exchange of text through the clipboard
 - Windows: a new port derived from Lauri's work is now available