Switch to intptr_t for the base fixnum type.
Remove SCAN_64BIT.
Switch fasl-dump to use IO encode/decode routines.
Correct a few test cases that failed due to the enlargement of unboxed fixnums to 62 bits.
Change test-read-line to reflect the fact that strings do not support CR+LF translation.
Use an anonymous union to place a lower bound on the size of an lobject_t header, rather than a wierd cpp thingy.
Add a fixcons overflow trap.
Correct an error in the compiler runtime error handler.
Trap on unboxed fixnum overflow.
Remove the boxed fixnum representation from the VM.
WIP: useful fixnum overflow trap arguments.
Remove some tautological comparisons that OSX clang flagged.
Correct two unbound symbol errors in io.scm, as well as a bug that totally broke output to text files.
Update fast-bench benchmark results.
Merge in intptr changes.
Switch from BSD finite() to C99 isfinite().