Add chat and call support in contacts manager.

Added two buttons to chat or call a contact. When clicked the contacts manager is closed to talk or chat with the contact. This feature does not yet support calling/chatting multiple instances of a contact.
Text size is now default size with separated icon/text buttons.  Attached is a preview.
![contacts-manager2](https://cloud.githubusercontent.com/assets/4820641/5044089/e6000850-6bec-11e4-885e-cdb44ca15c96.png)