Log Message: Add some security fix regarding to http://www.imagemagick.org/discourse-server/viewtopic.php?f=4&t=20629. [CVE-2012-0259] JPEG EXIF tag crash. [CVE-2012-0260] Excessive memory use with JPEG restart markers. [CVE-2012-1798] Copying of invalid memory when reading TIFF EXIF IFD. Bump PKGREVISION.