[maven-release-plugin] copy for tag 4.2.1-diffbot

fix wikiApi and allow retrieval of more than 500 items

dbpedia_2014 tag

moved some .gitignore stuff down to child modules

Use more-readable-anchors-new instead of lessreadableanchors(old) ; m…

…inor fixes in abstract description and bzip2 footnote

escape homepage URIs