More bignum division fixes.
Consolidating common SRFI-1 and R7RS bindings into the core.
Using the version of list-copy which supports dotted tails.
Fixing some edge cases in arithmetic-shift.
Adding a note about evaluation order.
Patch from Lorenzo to avoid memory corruption in bignum sqrt.
Adding docs about exceptions from C.
Moving exact-sqrt into the core, with exact-integer-sqrt a variant that simply wraps in values.
Adding libchibi-scheme.a target.
file-link? needs to use lstat.  Fixes issue #210.
Preferring short names for exact and inexact.
Correcting previous commit - inexact and exact are no longer opcodes.
Adding missing R7RS promise? and test cases.
Better initial estimate for bignum sqrt from Lorenzo.
Allowing and ignoring -h for Bhoem compile.
Adding optional stack traces on potential GC misses detected by conservative tracing.
Fixing typo in sexp_gc_preserve7 which wasn't preserving the 7th var.
Small simplification in sexp_bignum_fxmul.
Adding initial bytevector library.
Adding MD5 lib.