Updated Flask-Cache to 0.11.
Merge branch 'master' of github.com:ox-it/moxie

* 'master' of github.com:ox-it/moxie:
  Fix recursion error
  Placed get_places_by_identifiers into own test
  Old API as well as new one, added test to cover both cases.
  Attempt to make code a bit easier to read...
  Places / refactoring service to allow the search of more than one ID.