Trying to fix Travis CI
Merge remote-tracking branch 'upstream/master'
Merge branch 'master' of https://github.com/dbpedia/extraction-framework
Merge branch 'master' of https://github.com/dbpedia/extraction-framework
Sync travis file
Trying to fix Travis CI
Parse Wikidata JSON text into an object model.
Sync Travis CI
Remove not needed toText methods (wrongly inserted in a previous commit)
usage: MYSQL_HOME must be MySQL install dir
extraction.abstracts.properties: added comment
extraction.abstracts.properties: short help URL

shorter URL for wiki page with instructions
Rename download.wikidata to download.wikidata.properties
Rename extraction.wikidata to extraction.wikidata.properties
shorter URL for serialization-format-properties help page
Document NonFreeRegex configuration
Document NonFreeRegex configuration
Merge pull request #35 from ninniuz/Wikidata_Interlanguage

working code merged,  We will create issues, so we do not forget  to include JC's suggestions and can work on them consecutively
Merge branch 'master' of https://github.com/dbpedia/extraction-framework
Wikidata links: bugfix for exponential number of nodes
Use empty list for children.