WIP #34: added channel map manager and new editor window. Removed a

number of unused classes.  Removed playlist manager from a number of
classes and replaced with the alias, channel and channel map models.
Updated playlist manager to no longer retain a playlist except for when
loading to models or when storing from models.  Extracted version 1 to
version 2 playlist conversion and changed playlist manager to keep the
original version 1 playlist and create a new version 2 (playlist_v2.xml)
file.  On startup, try to load a v2, and if not, look for a v1 to
convert.  Otherwise, don't create a playlist and one will be created
once the user adds items to the models.

src/playlist/version1/SystemList.java

@@ -0,0 +1,61 @@
+/*******************************************************************************
+ *     SDR Trunk 
+ *     Copyright (C) 2014 Dennis Sheirer
+ * 
+ *     This program is free software: you can redistribute it and/or modify
+ *     it under the terms of the GNU General Public License as published by
+ *     the Free Software Foundation, either version 3 of the License, or
+ *     (at your option) any later version.
+ * 
+ *     This program is distributed in the hope that it will be useful,
+ *     but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *     GNU General Public License for more details.
+ * 
+ *     You should have received a copy of the GNU General Public License
+ *     along with this program.  If not, see <http://www.gnu.org/licenses/>
+ ******************************************************************************/
+package playlist.version1;
+
+import java.util.ArrayList;
+
+import javax.xml.bind.annotation.XmlRootElement;
+import javax.xml.bind.annotation.XmlSeeAlso;
+
+@XmlSeeAlso( { playlist.version1.System.class } )
+
+@XmlRootElement( name = "system_list" )
+@Deprecated
+public class SystemList
+{
+    private ArrayList<System> mSystem = new ArrayList<System>();
+
+    public SystemList()
+    {
+    }
+    
+    public ArrayList<System> getSystem()
+    {
+        return mSystem;
+    }
+    
+    public void setSystem( ArrayList<System> systems )
+    {
+    	mSystem = systems;
+    }
+    
+    public void addSystem( System system )
+    {
+        mSystem.add( system );
+    }
+    
+    public void removeSystem( System system )
+    {
+        mSystem.remove( system );
+    }
+    
+    public void clearSystems()
+    {
+        mSystem.clear();
+    }
+}