Added the ability to play sounds.

Instead of prompting for a folder every time we start, I've hard-coded tilt/x.mp3 into the program.
If you want to play these sounds, copy the tilt/ that I've committed to the root
of your /sdcard/ on your phone (It should be alongside Downloads and Music)

Android seems to dislike the we I'm playing audio, and after ~20 or 40 plays it goes
mute, and debugging can't really explain why. So if it goes mute for you kill
the app and then reopen it. (Settings->Apps->Tilt->Force Quit)

Also, the filenames are the directions that play them, so if you dislike the
included sounds, feel free to replace them. Just keep in mind case matters.
Merge branch 'master' of https://github.com/Evara777/INF133AndriodSensors