Add check for href value to sampledFeature insertion. If the href value is http://www.opengis.net/def/nil/OGC/0/unknown, no sampledFeature with identifier http://www.opengis.net/def/nil/OGC/0/unknown is inserted.
If old settings are loaded, the initialization fails during the setting of SosServiceIdentification title and abstract because the parameter changed from String to MultilingualString.
Solution: Set method parameter to Object and check type of Object. If Object is a String, create a MultilingualString with default language value (eng) as locale
Merge pull request #137 from CarstenHollmann/fix/unknown_feature_insertion

Add check for href value to sampledFeature insertion.
Merge pull request #138 from CarstenHollmann/fix/service_identification_settings_from_preconfigured_settings_db

Initialization fails with predefined settings