updated file structure & android version to 5.0

The file structure has been setup to follow Android Studio's 1.0.0 structure.

The application now requires android 5.0 API level 21 to be ran.
updated file structure & android version to 5.0

The file structure has been setup to follow Android Studio's 1.0.0 structure.

The application now requires android 5.0 API level 21 to be ran.