* New user directory implemented.
* Generate user directory structure at compile
time instead of at runtime(Pure/Harmony).
* Changed MTP root path to /storage
* FileIndexer: Minor refactor
* FileIndexer: Fixed handling incorrect/non-existing
scan directories.
* Updated Repository module to correctly handle
many assets paths.
* MultimediaDB: Minor unit tests refactor and fixed
some issues when using simulator.
* MultimediaDB: Added new queries and unit tests
* Harmony/Relaxation: Updated to correctly
use audio assets from more than one source.
* Harmony/Relaxation: Updated model and list items
provider.
* Harmony/Relaxation: Fixed stack overflow in audio service
