Add configuration option for lobid api host

Fixes EDOZWO-270
Fix missing function in drupal's version of jquery autocompletion
Automatically trigger loading referenced entities

EDOZWO-272
Refactor lobid queries to ntriples
Add direct download link for file references
Add inference for dnb resources
Add GND ontology file
Add dependencies as submodules
Add icons to download links
Clear caches when API host is changed
Use current version of LibRDF_Reasoner
Merge remote-tracking branch 'felix/0.3.1' into test