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
_groupPublished field contains operation name and not group name anymore (#474).
Add clear xlink cache description.
Thesaurus manager: uploading a thesaurus file using a url fails (#468).
Merge remote-tracking branch 'geonetwork/develop' into develop
Add support to index current selection.

Add in thesaurus manager an action to update related records to the current thesaurus. This is required when XLinks are used and keywords are modified in the thesaurus. In that case, XLink cache should be cleaned and related records reindex.
#476 Print to pdf metadata selection using only lucene index information
Geopublisher / Missing styler link (#479).
Merge pull request #478 from josegar74/pdf-from-lucene-index

#476  Print to pdf metadata selection using only lucene index information
Don't display the action if only one group in the catalog.
Avoid JS error when paginationInfo is not defined. Add a default one. Do not trigger search if no facets defined.
Fix typo.
ISO19139 / Fix template when adding a resolution.
Create deep copy of codelist to not modify the cached object - it was creating many blanks options in some cases.