rename (rnrs bytevector) to (rnrs bytevectors)

* module/rnrs/bytevectors.scm: Rename to (rnrs bytevectors), from (rnrs
  bytevector), to match the name from the R6RS.

* benchmark-suite/benchmarks/bytevectors.bm:
* doc/ref/api-data.texi:
* doc/ref/api-foreign.texi:
* libguile/bytevectors.c:
* module/6/rnrs.scm:
* module/language/assembly.scm:
* module/language/assembly/compile-bytecode.scm:
* module/language/assembly/decompile-bytecode.scm:
* module/language/glil/compile-assembly.scm:
* module/language/tree-il/primitives.scm:
* module/srfi/srfi-4.scm:
* module/srfi/srfi-4/gnu.scm:
* module/system/foreign.scm:
* test-suite/standalone/test-ffi:
* test-suite/tests/asm-to-bytecode.test:
* test-suite/tests/bytevectors.test:
* test-suite/tests/foreign.test:
* test-suite/tests/r6rs-ports.test: Update all referrers.

module/srfi/srfi-4.scm

@@ -27,7 +27,7 @@
 ;;; Code:
 
 (define-module (srfi srfi-4)
-  #:use-module (rnrs bytevector)
+  #:use-module (rnrs bytevectors)
   #:export (;; Unsigned 8-bit vectors.
             u8vector? make-u8vector u8vector u8vector-length u8vector-ref
             u8vector-set! u8vector->list list->u8vector

module/srfi/srfi-4/gnu.scm

@@ -1,6 +1,6 @@
 ;;; Extensions to SRFI-4
 
-;; 	Copyright (C) 2009 Free Software Foundation, Inc.
+;; 	Copyright (C) 2009, 2010 Free Software Foundation, Inc.
 ;;
 ;; This library is free software; you can redistribute it and/or
 ;; modify it under the terms of the GNU Lesser General Public
@@ -23,7 +23,7 @@
 ;;; Code:
 
 (define-module (srfi srfi-4 gnu)
-  #:use-module (rnrs bytevector)
+  #:use-module (rnrs bytevectors)
   #:use-module (srfi srfi-4)
   #:export (;; Complex numbers with 32- and 64-bit components.
             c32vector? make-c32vector c32vector c32vector-length c32vector-ref