Fix: IE has a sub-pixel rendering issue with the row heights which
causes the rows to go out of alignment. The fix is to add a pixel to the
measured height - it means the height is slightly more than it should
be, but I don't really see another option. Equally, I've used the
appName as detection since any feature detection would be fairly heavy
of the DOm, injecting multiple rows and finding if there is a height
difference.

- Still tobe tested in IE11