Out of memory fixes and updates to the P25 decoder.

Memory Fixes
Decreased the decimation process repeat timing so that it runs smaller work chunks more often
Decreased scheduled thread pool to 2 hot threads
Wrapped all scheduled thread pool runnables in try/catch blocks so that an exception doesn't kill the sample buffer processing thread and cause the buffer to grow unbounded.

P25 updates
Moved TSBK crc checks into the message framer so that message corrections don't occur after the message is constructed.
Added more functionality to the channel state for handling registrations and call events.

src/gui/SDRTrunk.java

@@ -18,12 +18,14 @@
 package gui;
 
 import java.awt.AWTException;
+import java.awt.Desktop;
 import java.awt.Dimension;
 import java.awt.EventQueue;
 import java.awt.Robot;
 import java.awt.event.ActionEvent;
 import java.awt.event.ActionListener;
 import java.awt.image.BufferedImage;
+import java.io.File;
 import java.io.IOException;
 import java.nio.file.FileSystems;
 import java.nio.file.Files;
@@ -34,6 +36,7 @@ import javax.swing.JFrame;
 import javax.swing.JMenu;
 import javax.swing.JMenuBar;
 import javax.swing.JMenuItem;
+import javax.swing.JOptionPane;
 import javax.swing.JSeparator;
 
 import net.miginfocom.swing.MigLayout;
@@ -188,6 +191,30 @@ public class SDRTrunk
         
         JMenu fileMenu = new JMenu( "File" );
         menuBar.add( fileMenu );
+
+        JMenuItem logFilesMenu = new JMenuItem( "Logs & Recordings" );
+        logFilesMenu.addActionListener( new ActionListener()
+		{
+			@Override
+			public void actionPerformed( ActionEvent arg0 )
+			{
+				try
+				{
+					Desktop.getDesktop().open( getHomePath().toFile() );				
+				}
+				catch( Exception e )
+				{
+					mLog.error( "Couldn't open file explorer" );
+					
+					JOptionPane.showMessageDialog( mMainGui, 
+						"Can't launch file explorer - files are located at: " + 
+										getHomePath().toString(),
+						"Can't launch file explorer",
+						JOptionPane.ERROR_MESSAGE );
+				}
+			}
+		} );
+        fileMenu.add( logFilesMenu );
         
         JMenuItem settingsMenu = new JMenuItem( "Icon Manager" );
         settingsMenu.addActionListener( new ActionListener()