-Added dropdown menu for background player activity.

-Added icons for shuffle and drag handle.
-Fixed exception when returning to background player activity after service shuts down.
-Fixed open detail only working for Youtube.

app/src/main/res/values/attrs.xml

@@ -18,6 +18,7 @@
     <attr name="palette" format="reference"/>
     <attr name="language" format="reference"/>
     <attr name="history" format="reference"/>
+    <attr name="reorder" format="reference"/>
 
     <!-- Can't refer to colors directly into drawable's xml-->
     <attr name="toolbar_shadow_drawable" format="reference"/>

app/src/main/res/values/strings.xml

@@ -293,6 +293,10 @@
     <string name="new_and_hot">New &amp; hot</string>
     <string name="service_kiosk_string" translatable="false">%1$s/%2$s</string>
 
-    <!-- Player -->
+    <!-- Play Queue -->
     <string name="title_activity_background_player">Background Player</string>
+    <string name="play_queue_remove">Remove</string>
+    <string name="play_queue_stream_detail">Details</string>
+    <string name="play_queue_audio_settings">Audio Settings</string>
+
 </resources>

app/src/main/res/values/styles.xml

@@ -25,6 +25,7 @@
         <item name="palette">@drawable/ic_palette_black_24dp</item>
         <item name="language">@drawable/ic_language_black_24dp</item>
         <item name="history">@drawable/ic_history_black_24dp</item>
+        <item name="reorder">@drawable/ic_reorder_black_24dp</item>
 
         <item name="selector_color">@color/light_selector</item>
         <item name="separator_color">@color/light_separator_color</item>
@@ -60,6 +61,7 @@
         <item name="palette">@drawable/ic_palette_white_24dp</item>
         <item name="language">@drawable/ic_language_white_24dp</item>
         <item name="history">@drawable/ic_history_white_24dp</item>
+        <item name="reorder">@drawable/ic_reorder_white_24dp</item>
 
         <item name="selector_color">@color/dark_selector</item>
         <item name="separator_color">@color/dark_separator_color</item>