Complete new Search UI

- simple/extended in js

- wordcloud in collection results

- collection selection/sorting

- switch search types

- show more

• refactor query/result model

= test all cases

(from redmine: issue id 69, created on 2018-01-22tgradl, closed on 2018-01-22)

• Relations:
  • relates #72 (closed)
  • relates #75 (closed)
  • relates #76 (closed)
  • relates #78
  • relates #80 (closed)
  • relates #81 (closed)
  • relates #82 (closed)
  • relates #94 (closed)