`If-None-Match` support, Dependency updates

• Adds If-None-Match support for non-State document storage (credit: @brianjmiller)
• Adds OWASP dependency checker during build (credit: @mikemcgowan)
• Bumps junit, jackson-databind, jackson-annotations, jackson-core, jetty-client, jetty-servlet, lombok dependencies (credit: @mikemcgowan)
• Minor changes to README, test ids, etc.