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
Merge branch 'master' of https://github.com/dbpedia/extraction-framework
Merge branch 'master' of https://github.com/dbpedia/extraction-framework
Merge branch 'master' of https://github.com/dbpedia/extraction-framework
Merge branch 'master' of https://github.com/ninniuz/extraction-framework
Reject too long predicates.

Implemented an extension of the UriPolicy which rejects predicates which length > 512 chars.
The UriPolicy property is called "validate-uri-length" and only accepts "-predicates" as suffix.

Fix for #29
Merge pull request #42 from ninniuz/29_big_prop

Reject long predicates
Reject long URIs

Implemented suggestions from Dimitris and Jona in #42
Merge pull request #43 from ninniuz/29_long_prop_2

Reject long URIs
Handle default action and throw exception (after the addition of WikidataInterWikiLinkNode)
Merge remote-tracking branch 'origin/master'
New extractor for getting templates used in an article
This data can be used for Wikipedia administrative tasks
Fix: Handle default action and throw exception (after the addition of WikidataInterWikiLinkNode)
Move "wikiPageUsesTemplate" property to ArticleTemplatesExtractor
Fix duplicate notification in Travis
comment about alternative langlist file URL

langlist was unavailable for some days. It's back, but if it goes away again, we may use a copy in git.