First snapshot (beta 0.9)

- playlists working (not all features added yet)
- minor fixes and improvements

app/src/main/res/layout/item_grid_album.xml

@@ -4,13 +4,13 @@
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="wrap_content"
     android:layout_height="wrap_content"
+    android:layout_margin="4dp"
     android:elevation="3dp"
     android:foreground="?rect_selector">
 
     <LinearLayout
         android:layout_width="match_parent"
         android:layout_height="match_parent"
-        android:layout_margin="4dp"
         android:gravity="center"
         android:orientation="vertical">