Issue #30: improve in-browser performance tests

This pull request includes a handful of improvements to the in-browser performance tests for uTransformers.fte and uTransformers.rabbit.

Highlights:

* We have more test cases, which now cover BitTorrent, NTP, and RIP from l7-filter and appid.
* I removed some of the FPE cases.
* I added a new column which calculates the throughput, in Mbps, for each configuration.

See below for a screenshot before/after screenshots. 

### Before

![screen shot 2014-07-13 at 4 02 11 pm](https://cloud.githubusercontent.com/assets/2654449/3588642/c34b22b0-0c45-11e4-8e18-3ce543cb2ae6.png)

### After

![screen shot 2014-07-15 at 10 18 29 am](https://cloud.githubusercontent.com/assets/2654449/3588643/c947d776-0c45-11e4-8f29-50a23d178c54.png)