tiles should add extra descriptive class

[polyester]

it would be helpful if tiles add an extra class on what kind of tile they are. Something like 'class="covertile-pfg"', 'class="covertile-list"', to make it easier for CSS and diazo to grip onto. I'm suggesting covertile here as name, because there might be future confusion when others start using the name 'tiles' as well

[agnogueira]

+1

[hvelarde]

I think this is related with #190 that is already closed.

should we consider this as implemented?

[agnogueira]

No, it's different. This is an automatic class for each tile, always on code, not defined by the user

[polyester]

the use-case is different. Both are good, but this allows styling of all 'list' type tiles, without end user intervention