FOP-2353: Test PDF-A preflight warnings

git-svn-id: https://svn.apache.org/repos/asf/xmlgraphics/fop/trunk@1620537 13f79535-47bb-0310-9956-ffa450edef68
Disable checkstyle on gump

git-svn-id: https://svn.apache.org/repos/asf/xmlgraphics/fop/trunk@1620784 13f79535-47bb-0310-9956-ffa450edef68
Update batik library to ToT.

git-svn-id: https://svn.apache.org/repos/asf/xmlgraphics/fop/trunk@1621624 13f79535-47bb-0310-9956-ffa450edef68
Merge branch 'trunk' into fop-2391-svg-cs