The project updated with latest libraries and Android APIs

 a lot of things has changed, such as 
- Sensor part of Campus updated by using new APIs
- PreferenceActivity replaced by PreferenceFragment,
- Fragment dialog added (instead of old showDialog one). 
- Robojuice library removed! sorry for that if you are fan of that library :) but I needed `ActionBarActivity` since its parent is FragmentActivity.
- and so many other small changes. However, I tested the app locally based on `OBD-SERVER` and application was/is working fine (in my country says like Watch (accurate), haha)

Hope my English is well enough to explain what I did overally and all these improvements. Please let me know if something needs change. Thanks ;)