Check for OpenSSL headers/libraries
ifndef MIN() & MAX() macros
Use sane defaults
a debugger init function

    * in addition this change persists breakpoints/watchpoints across reboots
sanity-check for cpu thread
More common video code

    * Provide new function to get current common framebuffer
    * Migrates non-X11 video_setpage routine
better pthread signaling between ui and cpu threads
New debugger commands and changes

    * TYPE : send debugger console through to the machine
    * LOAD : send textfile through to the same mechanism
    * FBSHA1 : get a SHA1 value of the current machine framebuffer
    * better CPU stepping functionality
Allow programmatic setting of memory watchpoints
Fixes for bsave/bload

    * Warn/abort for overflows
work around compiler warnings in flex-generated debug.c
Allow Caps Lock state from X11 to override default
differentiate between typing/loading as variant of going
Beginnings of various virtual machine tests

    * Tests run the virtual 65c02 machine through the debugger interface
    * The various display mode tests verify against the SHA1 of the framebuffer
    * Includes some Applesoft BASIC script tests (also loaded on disks/testvm1.dsk.gz)
Don't check for the I flag on PLP and RTI

    * Apparently the I flag is not set for PLP and RTI, or rather, our implementation of
      mockingboard seems to expect it not to be set for these opcodes...
vidsup.c -> display.c
Remove non-"640x400" display mode
Use BANK2 offset instead of magic constant
Remove non-//e code paths
Refactor text plotting routines to C

    * Moves plot character routines to C from i386 assembly