Merge pull request #4 from geonetwork/master

Pull request to synch with geonetwork/core-geonetwork repository
Merge pull request #6 from geonetwork/master

Update to master
Merge remote-tracking branch 'upstream/develop' into develop
set geonetwork.GeoServerPublisher logging to DEBUG level
also set geonetwork.GeoServerRest logging to DEBUG level
jslint. Fix list of records with indexing errors.
Remove links to unavailable monitoring services (#409).
Misc fix on wrong SQL queries for content statistics.
Add missing deps for harvestercontroller.
Avoid to index map as dataset (#411).
Add XSL transformation in metadata harvested via CSW (#407).
Fix conversion list for harvester config.
Add link to editor board from top toolbar.
Avoid XSL exception when calling Java.
#413 Tab search widget UI doesn't show correct groups in the advanced search panel
Exclude some fields from language detection. Language detection throw lots of LangDetectException (#412).
Merge remote-tracking branch 'origin/develop' into develop
Remove file added by mistake.
Add .gitignore on node folder.
Fix wrong URL for gn namespace.