Turn off faux-link promoted/elevated links on items below desktop

Without a pointing device it's not clear that kickers etc are separate links which may not actually take you to the article they describe. 

Since it's [hard to reliably detect a touch device](http://www.stucox.com/blog/you-cant-detect-a-touchscreen), this PR kills promoted/elevated links until desktop breakpoint is reached (except for sublinks). 

This isn't ideal, since large tablets and small laptops share screen sizes. Def up for other suggestions...