Adaptive switching enhancements

Enhancements to the adaptive switching test display and test page capabilities. Bump up the goal buffer length to 30 seconds. That modification alone improved behavior significantly. Tested the following scenarios:

### Sustained Low Bandwidth
![screen shot 2014-06-27 at 8 12 34 pm](https://cloud.githubusercontent.com/assets/56667/3419215/f371937a-fe58-11e3-83c3-141a1fad81f0.png)
### Sustained High Bandwidth
![screen shot 2014-06-27 at 8 13 16 pm](https://cloud.githubusercontent.com/assets/56667/3419217/0c9fcbc8-fe59-11e3-869e-7d704f2c5b18.png)
### Low Bandwidth Spikes
![screen shot 2014-06-27 at 7 07 45 pm](https://cloud.githubusercontent.com/assets/56667/3419205/b650df46-fe58-11e3-99a1-81afbfbf63b8.png)
### High Bandwidth Spikes
![screen shot 2014-06-27 at 7 00 42 pm](https://cloud.githubusercontent.com/assets/56667/3419202/afeefef8-fe58-11e3-8613-a41341a7083e.png)