Add relativize_datetimes JS function
Add relativize_datetimes JS function

Not a huge fan of these relative times but they feel
appropriate here. We don't really care exactly *when*
someone subscribed or endorsed an article, a vague
sense is fine.

liufffan/orientation,smashingboxes/orientation,LogicalBricks/orientation,IZEA/orientation,twinn/orientation,codio/orientation,Scripted/orientation,codeschool/orientation,orientation/orientation,codio/orientation,friism/orientation,Scripted/orientation,codeschool/orientation,orientation/orientation,smashingboxes/orientation,splicers/orientation,cmckni3/orientation,friism/orientation,hashrocket/orientation,jefmathiot/orientation,codeschool/orientation,robomc/orientation,splicers/orientation,LogicalBricks/orientation,twinn/orientation,ferdinandrosario/orientation,jefmathiot/orientation,ferdinandrosario/orientation,splicers/orientation,cmckni3/orientation,cmckni3/orientation,orientation/orientation,Scripted/orientation,hashrocket/orientation,liufffan/orientation,IZEA/orientation,robomc/orientation,orientation/orientation