NEWS in cairo-1.5.0 vs NEWS in cairo-1.5.1

@@ -1,5 +1,19 @@
+Release 1.5.1 (2008-01-11) Kouhei Sutou <[e-mail]>)
+==========================================================
+
+Features
+--------
+  * Support Quartz surface.
+  * Fix a wrong type conversion bug. (Binzo)
+  * Fix a memory leak bug. (Binzo)
+  * Support ruby 1.9.0. (Paul van Tilburg)
+  * Fix typos. (NANKI Haruo)
+  * Rename Cairo::WIN32Surface to Cairo::Win32Surface
+    * Cairo::WIN32Surface is still available for backward compatibility but
+      don't use in newly written code.
+
 Release 1.5.0 (2007-05-27) Kouhei Sutou <[e-mail]>)
 ==========================================================
 
 Many API improvement.
 
@@ -17,10 +31,10 @@
 	From:
 	  context.set_source_rgb(1, 0, 0)
 	To:
 	  context.set_source_color(:red)
 
-    * Support RGB/CMYK/HSV conversion.
+    * Support color type conversion between RGB, CMYK and HSV.
     * Many default color definitions.
   * Support path creation using Cairo::Path without
     Cairo::Context.
   * Improve constant value specify API. For example:
       From: