(Bug #5068) Add layout credit to Lefty

Make the credit module work correctly in Lefty.
Merge pull request #395 from LivredOr/5058_Lefty_Credit

(Bug #5068) Add layout credit to Lefty
(Bug 2272) Increase day page limits

The day page was limited to 200 items, this raises it to 2000 to be in
line with the month page.