Projectkk2glider/mixes and inputs display

Small visual improvements of inputs and mixers tab in companion. See if you like.

Before:

![before](https://cloud.githubusercontent.com/assets/5950438/2850821/564757f4-d10a-11e3-9d1e-eb3d4b3ec368.png)

After:

![after](https://cloud.githubusercontent.com/assets/5950438/2850822/5c353a46-d10a-11e3-8406-69aa5aabc3ed.png)