filter on recurrent dates and/or specific page

[e-maud]

Suggestion from a student looking at the "page féminines" of JDG, that are published every 25th of the month on a certain page:
Possibility to select articles published on every xyz day of the month, and/or always on page xyz.

For now this is doable by post-filtering articles in the .csv export, but having this selection possibility in the GUI would make sense?

[danieleguido]

This is a good feature for the upcoming datalab :) let's follow this on the datalab repo impresso/impresso-datalab#3