-Added ability to save playlist as remote playlist link rather than storing it in database.

-Added LeakCanary as part of debug build.
-Modified bookmark list to show both remote and local playlists.
-Removed ability to save channel items as local playlist, in favor of subscribe.

app/src/main/res/menu/menu_channel.xml

@@ -22,12 +22,4 @@
         android:icon="?attr/share"
         android:title="@string/share"
         app:showAsAction="ifRoom"/>
-
-    <item
-        android:id="@+id/menu_append_playlist"
-        android:icon="?attr/playlist_add"
-        android:title="@string/append_playlist"
-        android:visible="false"
-        app:showAsAction="ifRoom"
-        tools:visible="true"/>
 </menu>

app/src/main/res/menu/menu_play_queue.xml

@@ -5,7 +5,7 @@
 
     <item
         android:id="@+id/action_append_playlist"
-        android:icon="?attr/playlist_add"
+        android:icon="?attr/ic_playlist_add"
         android:title="@string/append_playlist"
         android:visible="true"
         app:showAsAction="ifRoom"/>

app/src/main/res/menu/menu_playlist.xml

@@ -15,10 +15,18 @@
         app:showAsAction="ifRoom"/>
 
     <item
-        android:id="@+id/menu_append_playlist"
-        android:icon="?attr/playlist_add"
-        android:title="@string/append_playlist"
+        android:id="@+id/menu_item_bookmark"
+        android:icon="?attr/ic_playlist_add"
+        android:title="@string/bookmark_playlist"
         android:visible="false"
-        app:showAsAction="ifRoom"
+        app:showAsAction="always"
+        tools:visible="true"/>
+
+    <item
+        android:id="@+id/menu_item_unbookmark"
+        android:icon="?attr/ic_playlist_check"
+        android:title="@string/unbookmark_playlist"
+        android:visible="false"
+        app:showAsAction="always"
         tools:visible="true"/>
 </menu>