ghostscript security and bug fix update

9.07-28 - Security fix for CVE-2017-8291 updated to address SIGSEGV 9.07-27 - Added security fix for CVE-2017-8291 bug 1446063 9.07-26 - Updated requirements for lcms2 to avoid possible issues in the future 9.07-25 - Added security fix for CVE-2017-7207 bug 1434353 - Added explicit requirement fo...