- upgrade to NekoHTML 1.9.21-SNAPSHOT with fix for unknown closing tags can't close any other unknown tags.
- fixes issue 1562

git-svn-id: svn://svn.code.sf.net/p/htmlunit/code/trunk@9171 5f5364db-9458-4db8-a492-e30667be6df6
usual two phases commit for changes in pom.xml

git-svn-id: svn://svn.code.sf.net/p/htmlunit/code/trunk@9172 5f5364db-9458-4db8-a492-e30667be6df6