top changers overhaul

fixes bug 1087290
currently:
![current](https://cloud.githubusercontent.com/assets/21467/4735943/d98e4770-59e6-11e4-8c36-7c18261878d3.png)
after this:
![after](https://cloud.githubusercontent.com/assets/21467/4735947/e8a2e45a-59e6-11e4-9c4e-05dca7b1b317.png)

I would suggest that you use class="data-table tablesorter" here. Then you get the same styling as the other tables, as well as the hover highlighting and such.