No db access for inlinks. Needs check.
Allow (dis-) enabling of crawl graph generation.
Merge branch 'optimize_crawlgraph' into optimize_inlinks
Merge branch 'devel_ek' into optimize_inlinks
Merge branch 'devel_ek' into optimize_inlinks
Merge branch 'optimize_inlinks' into devel_ek
Merge branch 'devel_ek' of https://github.com/Querela/Praktikum-Computational-Advertising into devel_ek