Moved config files to resources folder
shell helper: CURL_TURTLE to get turtle representation
Config gives severe log warnings when trying to access non-existing config properties
readHeuristically(String) doesn't try to load a URL anymore but
interprets the string as the content
AbstractRDFService: When no uri parameter, don't throw null in the Exception
NS: Helper class for namespaces and URLs
DataService and PublishService now use NS constants instead of hard-coded defaults
FileService constant SERVICE_URI