Fix background color for selected words, selected autocompletion list

This PR fixes background color

from
![image](https://cloud.githubusercontent.com/assets/1540981/5187192/ab88b638-750e-11e4-8caf-6f4c623180d2.png)


to
![image](https://cloud.githubusercontent.com/assets/1540981/5187063/c4356fa6-750d-11e4-8eaf-81025ec70793.png)


from
![image](https://cloud.githubusercontent.com/assets/1540981/5187077/ee860c20-750d-11e4-92bf-83cca1f7d9b2.png)

to
![image](https://cloud.githubusercontent.com/assets/1540981/5187067/da57d922-750d-11e4-9113-a2308a0a1835.png)

Ready to merge