Update to libwebp-0.3.1. Update to giflib-4.2.1. Many LFS-7.3 tags thanks to Jean-Philippe MENGUAL. git-svn-id: svn://svn.linuxfromscratch.org/BLFS/trunk/BOOK@11421 af4574ff-66df-0310-9fd7-8a98e5e911e0
git-svn-id: svn://svn.linuxfromscratch.org/BLFS/trunk/BOOK@10628 af4574ff-66df-0310-9fd7-8a98e5e911e0
git-svn-id: svn://svn.linuxfromscratch.org/BLFS/trunk/BOOK@9029 af4574ff-66df-0310-9fd7-8a98e5e911e0
git-svn-id: svn://svn.linuxfromscratch.org/BLFS/trunk/BOOK@8934 af4574ff-66df-0310-9fd7-8a98e5e911e0