libpng: update to libpng-1.4.5

Signed-off-by: Stephan Raue <stephan@openelec.tv>

packages/graphics/libpng/meta

@@ -1,5 +1,5 @@
 PKG_NAME="libpng"
-PKG_VERSION="1.4.4"
+PKG_VERSION="1.4.5"
 PKG_REV="1"
 PKG_ARCH="any"
 PKG_LICENSE="OSS"

packages/graphics/libpng/patches/libpng-1.4.4-autoconf.patch

@@ -1,25 +0,0 @@
-diff -Naur libpng-1.4.4-old/configure.ac libpng-1.4.4-new/configure.ac
---- libpng-1.4.4-old/configure.ac	2010-09-23 05:18:36.000000000 -0700
-+++ libpng-1.4.4-new/configure.ac	2010-09-23 12:20:45.000000000 -0700
-@@ -18,16 +18,16 @@
- 
- dnl Version number stuff here:
- 
--PNGLIB_VERSION=1.4.4
--PNGLIB_MAJOR=1
--PNGLIB_MINOR=4
--PNGLIB_RELEASE=4
--
- AC_INIT([libpng], [1.4.4], [png-mng-implement@lists.sourceforge.net])
- AM_INIT_AUTOMAKE
- dnl stop configure from automagically running automake
- AM_MAINTAINER_MODE
- 
-+PNGLIB_VERSION=1.4.4
-+PNGLIB_MAJOR=1
-+PNGLIB_MINOR=4
-+PNGLIB_RELEASE=4
-+
- dnl End of version number stuff
- 
- AC_CONFIG_SRCDIR([pngget.c])