Update readme, changelog, versions to reflect 0.17.1 release

This is an important, bug-fix-only release
consisting of 0.17.0 with two cherry-picked patches:

  * c1daede
    WHOLE_TEXT_LAYOUT bidi: fix buffer overread on soft-wrapped events

  * a943ef5
    configure: support x86 assembly on GNU Hurd

Users of 0.17.0 are advised to upgrade to 0.17.1 soon.
Nothing has changed besides fixing crash and build-stopper bugs,
so there are no side effects.

Users of 0.16.0 are also affected by the buffer overread bug and are
advised to upgrade or at least to backport the relevant fix themselves.

Cherry-picked from: e8ad72a (tag 0.17.1)

Co-authored-by: Oneric <oneric@oneric.stub>

Changelog

@@ -1,3 +1,9 @@
+libass (0.17.1)
+ * Fix buffer overread if soft-wrapping occurred and
+   ASS_FEATURE_WHOLE_TEXT_LAYOUT was enabled via API or due to Encoding -1
+   (bug introduced in 0.16.0)
+ * x86: detect GNU Hurd and configure NASM appropriately
+
 libass (0.17.0)
  * Fix various parts relating to automatic linebreaking
  * Fix rendering when hinting was enabled and fontsizes or scales are zero

README.md

@@ -8,7 +8,7 @@ libass is a portable subtitle renderer for the ASS/SSA (Advanced Substation Alph
 
 Get it
 ======
-See [GitHub releases](https://github.com/libass/libass/releases) for the latest release 0.17.0 (released 2022-11-30).
+See [GitHub releases](https://github.com/libass/libass/releases) for the latest release 0.17.1 (released 2023-02-26).
 See the [changelog](https://github.com/libass/libass/blob/master/Changelog) for a detailed list of changes.
 
 Source code is available from our [GitHub repository](https://github.com/libass/libass).

configure.ac

@@ -1,4 +1,4 @@
-AC_INIT(libass, 0.17.0)
+AC_INIT(libass, 0.17.1)
 AM_INIT_AUTOMAKE([foreign subdir-objects])
 AC_CONFIG_MACRO_DIR([m4])
 LT_INIT

libass/Makefile_library.am

@@ -1,5 +1,5 @@
 LIBASS_LT_CURRENT = 11
-LIBASS_LT_REVISION = 0
+LIBASS_LT_REVISION = 1
 LIBASS_LT_AGE = 2
 
 nasm_verbose = $(nasm_verbose_$(V))

libass/ass.h

@@ -24,7 +24,7 @@
 #include <stdarg.h>
 #include "ass_types.h"
 
-#define LIBASS_VERSION 0x01700000
+#define LIBASS_VERSION 0x01701000
 
 #ifdef __cplusplus
 extern "C" {