libsaria: Give Playlists a size() function

Signed-off-by: Bryan Schumaker <bjschuma@gmail.com>

include/libsaria/playlist.h

@@ -23,6 +23,7 @@ namespace libsaria
 
 			void load();
 			void add_ids(list<sid_t> &);
+			unsigned int size();
 
 			/* Iterator functions */
 			void iter_reset();

libsaria/playlist/playlist.cpp

@@ -22,4 +22,9 @@ namespace libsaria
 		plist.insert(plist.end(), ids.begin(), ids.end());
 	}
 
+	unsigned int Playlist::size()
+	{
+		return plist.size();
+	}
+
 }

libsaria/queue/queue.cpp

@@ -37,7 +37,7 @@ namespace libsaria
 
 	unsigned int queue::size()
 	{
-		return playqueue.size();
+		return q_queue.size();
 	}
 
 	string queue::next_file()