communities: slicing removal from filter

Signed-off-by: Jiri Kuncar <jiri.kuncar@cern.ch>
oauthclient: get token fix

* Fixes an database query issue causing several tokens to be returned
  which in the end results in a token not belonging to the user could
  be returned.

Signed-off-by: Lars Holm Nielsen <lars.holm.nielsen@cern.ch>
login: fix permission issue for guest user

* Fixes a permission issue where a guest user did not have a list of
  permitted restricted collections calculated, causing issue with
  e.g. facets when viewing restricted collections (e.g. restricted to
  role anyuser).
installation: remove library (ZENODO only)

* Removes PyLD due to Python 2.6 requirement.
communities: hide search (ZENODO only)