* module/ice-9/arrays.scm (array-copy): New function, export.
* module/Makefile.am: Install (ice-9 arrays).
* doc/ref/api-data.texi: Add documentation for (ice-9 arrays).
* libguile/quicksort.i.c: Use signed bounds throughout.
* libguile/sort.c (scm_restricted_vector_sort_x): Fix error calls. Fix
calls to quicksort.
* test-suite/tests/sort.test: Actually test that the sorted results
match the original data. Test cases for non-zero base index arrays for
sort, sort!, and stable-sort!.
* libguile/sort.c (sort!, sort, restricted-vector-sort!, sorted?):
Support arrays of rank 1, whatever the type.
* libguile/quicksort.i.c: Fix accessors to handle typed arrays.
* test-suite/tests/sort.test: Test also with typed arrays.
EXTRA_libguile_la_SOURCES): Changed ramap.c and unif.c from being
'extra' to being regular sources.
(noinst_HEADERS): Added quicksort.i.c.
* quicksort.i.c: New file.
