Revert "use pager.items instead of pager._items"
Revert "use pager.items instead of pager._items"

This reverts commit 89e6dac6ba3d9006297ee3a118277e07ce7f48d9.

This change implies paging on the page index. We would
rather avoid this for now and eventually do this in a different
pull request.

phihag/adhocracy,alkadis/vcv,phihag/adhocracy,DanielNeugebauer/adhocracy,liqd/adhocracy,phihag/adhocracy,liqd/adhocracy,alkadis/vcv,DanielNeugebauer/adhocracy,liqd/adhocracy,alkadis/vcv,alkadis/vcv,phihag/adhocracy,DanielNeugebauer/adhocracy,alkadis/vcv,liqd/adhocracy,phihag/adhocracy,DanielNeugebauer/adhocracy,DanielNeugebauer/adhocracy