Display a server down message if app hangs at the loading sreen + Searchable edit text above film and event buttons

Hi Professor,

I just added a server down message if the app hangs at the loading screen while trying to fetch data from the server. We can make the app launch to the MainTab activity no matter what, but the app will have no data to display. Below is how it looks like if the app can't fetch data from the server.

![screenshot 2014-11-16 20 28 54](https://cloud.githubusercontent.com/assets/7309086/5065267/d67a99ba-6dcf-11e4-8564-551b206f9d7f.png)


Thanks!
Duc