fixed issue with gml:pos in mass solr doc; added new language headings to admin
Merge branch 'master' into electrum
changed collection name back
Merge branch 'master' into electrum
Merge branch 'master' into electrum
conflating acqinfo and custodhist into provenance element; added support in numishare for this; replacing prevcoll solr field with provenance_facet for saleCatalog and previousColl
changing collection name back