Bug Fixes

• Upgraded third-party libraries to address security vulnerabilities reported against them. Updated versions include Apache PDFBox 1.8.16 (CVE-2018-11797), Apache Commons Compress 1.18 (CVE-2018-11771) and FasterXML Jackson 2.9.7 (CVE-2018-7489).
• Some of the ways ServeContent can be invoked failed in some cases on AUs having multiple crawl-start URLs, when some of the start URLs do not exist.