added remove contact button and fixed styling

Added remove contact icon button/feature
![contact_list](https://f.cloud.github.com/assets/1468166/2095947/46fe3a80-8ef5-11e3-9234-bfce4b0c9cc4.PNG)

Here is the contact list after removing
![contact_list_removed](https://f.cloud.github.com/assets/1468166/2095950/5af43012-8ef5-11e3-9195-389cd55bb8cc.PNG)