Refactor the ViewsItems view, which covered the view and edit table, into a separate (non-view) class under tabs/view_and_edit_table.py. When ready, this will plug straight away into the new tabbed page functionality - in the mean time there is a place holder view to display the view where it used to be found.

The template is a temporary one for now

Ensure we use the right taxonomy for the question category. The taxonomy in use is still hard-coded, as that is something we will look at later - this commit was only intended to restore functionality to the existing level.

For RapidPro import - new column 'network provider' on item

There are two new item types 'question' and 'rumor'.
Item types for GeoPoll data are 'question'.
Item types for RapidPro data are 'rumor'

It will now trim the columns to the number defined in the map.

When a term is related to two items and is removed from one of them,
the other item should not show as being modified.

In this case for listing terms

Allow the chart count widget to have a time period. When present, apply the time period and display a legend detailing what the time period is.

In this case for checking taxonomies exist

In this case for counting taxonomies

Allow widgets to display error messages in the front end by raising a WidgetError (while other exceptions only display a generic message so as to avoid potential security leak)

This one covers the case where an item is removed from a term.