nutch 1.4 需要的额外的jar
nekohtml http://nekohtml.sourceforge.net/
dk.brics.automaton http://www.brics.dk/automaton/
rome http://mirrors.ibiblio.org/pub/mirrors/maven2/rome/rome/0.9/rome-0.9.jar
tagsoup-1.1.3 http://www.findjar.com/jar/org.ccil.cowan.tagsoup/jars/tagsoup-1.1.3.jar.html