APD-22: Caching of Institutions list
APD-22: Caching of the Institutionslist request
APD-22: Caching of the Institutionslist request
APD-22: Caching of the Institutionslist request
Merge branch 'APD-22-hla-instcache' into develop

Conflicts:
	grails-app/conf/ApplicationResources.groovy
	grails-app/services/de/ddb/apd/InstitutionService.groovy
	grails-app/utils/de/ddb/apd/ApiConsumer.groovy
	grails-app/utils/de/ddb/apd/exception/ConfigurationException.groovy
	grails-app/views/structureview/structureview.gsp