This reverts commit 2ed8adfe37.
reason: Because mounted engines on the app doesn't search the main_app's helpers, then throws "undefined method `paginate'" in the views
This reverts commit 00c912d12b.
reason: reverting back from app/helpers to ActionView::Base freedom-patch.
Because mounted engines on the app doesn't search the main_app's helpers, then throws "undefined method `paginate'" in the views
To work fine Kaminari need dm-aggregates so it's better to require it
if the DataMapper extension is active to be sure this gem is install in
runtime and can avoid some issue see #220
