Tiles: don't arrange themselves properly initially if Transition Time is non-zero

[merefield]

There looks to be some kind of timing issue where masonry fires before a new tile is fully rendered so that the tile gets left in the wrong place. It only occurs when someone posts a new reply to an existing Topic. This doesn't seem to occur in development but appears when running in Production (minified) mode. The workaround is to reduce Transition Time to zero and the issue goes away. One solution is to take Transition Time setting out and fix it at zero. Sadly we then lose the rather attractive animation. Workaround is to set the existing Transition Time setting to zero.