utils: datacite tester fix

* Fixes test case for DataCite API interface.

Signed-off-by: Lars Holm Nielsen <lars.holm.nielsen@cern.ch>
communities: curation button fixes

* Fixes display of error message reporting.

* Fixes icons in accept/reject buttons.

Signed-off-by: Lars Holm Nielsen <lars.holm.nielsen@cern.ch>
formatter: format template path fix

* Fixes path used to load format templates. Previous path
  assumed all templates where located in Invenio.

Signed-off-by: Lars Holm Nielsen <lars.holm.nielsen@cern.ch>