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
Merge remote-tracking branch 'geonetwork/develop' into develop
Merge branch 'develop' of https://github.com/josegar74/core-geonetwork into develop
Merge remote-tracking branch 'gn/develop' into develop
Merge remote-tracking branch 'gn/develop' into develop
Merge remote-tracking branch 'geonetwork/develop' into develop
#476 Print to pdf metadata selection using only lucene index information
Merge pull request #478 from josegar74/pdf-from-lucene-index

#476  Print to pdf metadata selection using only lucene index information