[libpng16] Bump version to 1.6.7beta03

ANNOUNCE

@@ -1,5 +1,5 @@
 
-Libpng 1.6.7beta02 - October 12, 2013
+Libpng 1.6.7beta03 - October 13, 2013
 
 This is not intended to be a public release.  It will be replaced
 within a few weeks by a public version or by another test version.
@@ -9,19 +9,19 @@ Files available for download:
 Source files with LF line endings (for Unix/Linux) and with a
 "configure" script
 
-   1.6.7beta02.tar.xz (LZMA-compressed, recommended)
-   1.6.7beta02.tar.gz
+   1.6.7beta03.tar.xz (LZMA-compressed, recommended)
+   1.6.7beta03.tar.gz
 
 Source files with CRLF line endings (for Windows), without the
 "configure" script
 
-   lp167b02.7z  (LZMA-compressed, recommended)
-   lp167b02.zip
+   lp167b03.7z  (LZMA-compressed, recommended)
+   lp167b03.zip
 
 Other information:
 
-   1.6.7beta02-README.txt
-   1.6.7beta02-LICENSE.txt
+   1.6.7beta03-README.txt
+   1.6.7beta03-LICENSE.txt
    Gnupg/*.asc (PGP armored detached signatures)
 
 Changes since the last public release (1.6.6):
@@ -72,6 +72,8 @@ Version 1.6.7beta02 [October 12, 2013]
   Make autogen.sh work with automake 1.13 as well as 1.14. Do this by always
     removing the 1.14 'compile' script but never checking for it.
 
+Version 1.6.7beta03 [October 13, 2013]
+
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