Added filter by category to article-list#147

Merged

alexander-schranz merged 2 commits intosulu:developfrom wachterjohannes:feature/filter-category

Apr 20, 2017

+262-27

Commits on Apr 19, 2017

added filter by category overlay for article-list
wachterjohannes
committed

Commits on Apr 20, 2017

fixed name of filter-by
wachterjohannes
committed