Update connections-default.xml

Added Spain resource: Centro Nacional de Información Geográfica (CNIG)

Author: jcomas

python/plugins/MetaSearch/resources/connections-default.xml

@@ -15,4 +15,5 @@
     <csw name="UK Location Catalogue Publishing Service" url="http://csw.data.gov.uk/geonetwork/srv/en/csw"/>
     <csw name="UNEP GRID-Geneva Metadata Catalog" url="http://metadata.grid.unep.ch:8080/geonetwork/srv/eng/csw"/>
     <csw name="Portugal: Sistema Nacional de Informação Geográfica (SNIG)" url="http://snig.dgterritorio.pt/geoportal/csw/discovery"/>
+    <csw name="Spain: Centro Nacional de Información Geográfica (CNIG)" url="http://www.ign.es/csw-inspire/srv/spa/csw"/>
 </qgsCSWConnections>