NEWS: Add notes for the 1.5.8 snapshot

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+Snapshot 1.5.8 (2008-01-30 Carl Worth <cworth@cworth.org>)
+==========================================================
+This is the fourth snapshot in cairo's unstable 1.5 series. It comes 2
+weeks after the 1.5.6 snapshot. It adds a few new API functions. Most
+notably all callers of cairo_image_surface_create_for_data should now
+be calling cairo_format_stride_for_width to compute a legal stride
+value. See below for more details.
+
+New API in cairo 1.5.8
+----------------------
+We've added a new function that should be called to compute a legal
+stride value before allocating data to be used with
+cairo_image_surface_create_for_data:
+
+	int
+	cairo_format_stride_for_width (cairo_format_t	format,
+				       int		width);
+
+We've also added a new cairo_path_extents function that can be used to
+compute a bounding box for geometry such as a single line segment,
+(contrast with cairo_path_extents and cairo_stroke_extents):
+
+	void
+	cairo_path_extents (cairo_t *cr,
+			    double *x1, double *y1,
+			    double *x2, double *y2);
+
+And finally, we've added a function to allow for querying the
+XRenderPictFormat of a cairo-xlib surface:
+
+	XRenderPictFormat *
+	cairo_xlib_surface_get_xrender_format (cairo_surface_t *surface);
+
+API changes
+-----------
+Fix return types of cairo_surface_show_page and
+cairo_surface_copy_page. This is an API change to functions that are
+new in the 1.5 series, so not an API break compared to any stable
+cairo release, (1.0.x, 1.2.x, 1.4.x).
+
+Change the return type of cairo_get_current_point() from void to
+cairo_status_t. This allows the caller to receive a
+CAIRO_STATUS_NO_CURRENT_POINT value to distinguish the a current point
+at the origin from no current point existing.
+
+Performance improvement
+-----------------------
+Improve performance of clipping by using an optimized code path
+internally, (with the ADD operator instead of IN).
+
+General bug fixes
+-----------------
+Fix various cairo_*_extents functions to initialize the return-value
+variables even in the case of a cairo_t in error.
+
+Treat NULL as a legitimate value for cairo_font_options_t*. [XXX: On
+discussion afterwards, we decided against this change so we plan to
+remove this again before 1.6.0]
+
+Fix rendering with CAIRO_ANTIALIAS_NONE to be more predictable, (that
+is, to avoid seams appearing when geometry and imagery share an
+identical edge). Portions of this fix are in the pixman library and
+will appear in a future release of that library.
+
+Avoid triggering an error for a font size of 0.
+
+Miscellaneous changes
+---------------------
+Require pixman >= 0.9.6.
+
+There has been a tremendous amount improvement to cairo's
+documentation. We're delighted that 100% of the public API has at
+least some documentation in the API reference manual. Many thanks to
+Behdad Esfahbod and Nis Martensen for leading this effort.
+
+cairo-pdf and cairo-ps
+----------------------
+Eliminate failure when a Type 1 font is embedded with an explicit
+glyph 0.
+
+cairo-pdf
+---------
+Implement a more correct and more efficient approach for patterns with
+an extend mode of CAIRO_EXTEND_REFLECT.
+
+cairo-ps
+--------
+Fix image masks to properly pack and pad mask bits.
+
+cairo-quartz
+------------
+Take care to only use DrawTiledImage for integer-aligned images, (and
+use slower paths to get the correct result in other cases).
+
+cairo-win32
+-----------
+Fix for older versions of mingw.
+
+Improve the handling of the clipping with the win32 and win32-printing
+surfaces.
+
+Fix rendering of non black/white text.
+
 Snapshot 1.5.6 (2008-01-15 Carl Worth <cworth@cworth.org>)
 ==========================================================
 This is the third snapshot in cairo's unstable 1.5 series. It comes