Footer number of fields

[jacobtomlinson]

The legacy code which Carte Noire is based on has 3 columns for the footer

Carte Noire has reduced it to two

It would be good if this could be a variable option.

[jacobtomlinson]

In Carte Noire these are set in _config.yml and are named footer_left and footer_right.

It could be better to make this into an array (maybe called footer_items) and then calculate the column widths based on the number of items.

[jacobtomlinson]

It might also be good to specify the number of required columns and then wrap if there are more options in the array.

A user might want a 2x2 footer or a 3x1 footer for example.