On my wiki there are two links in the Mobile menu,
about and disclaimers.
I do not have an about page and thus do not wish this useless link to
appear on the screen.
There is also the Privacy link shown at the bottom of every screen.
I do not have such page, and thus do not wish users to be clicking there
only to find nothing.
I also don't want to put "-" in even more pages I would have to
maintain. bug 63422#c3 .
In bug 63414#c5 it says I should request a configuration variable.
= Acceptance criteria
[] There is a $wgMinervaFooterConfiguration global. It is an array of keys defining what shows in the footer. When an item is removed the corresponding feature is removed from the footer
[] The config value applies to both stable and beta modes. It should not be possible to display different footers in desktop and mobile
```
[ 'about', 'privacy' ]
```