P25 audio decoder integration.

Auto-discovers the jmbe ( https://github.com/DSheirer/jmbe ) library at startup and provides decode P25 Phase 1 audio

src/bits/BinaryMessage.java

@@ -17,7 +17,6 @@
  ******************************************************************************/
 package bits;
 
-import java.util.Arrays;
 import java.util.BitSet;
 
 import org.slf4j.Logger;
@@ -110,6 +109,21 @@ public class BinaryMessage extends BitSet
         this.mPointer = size - 1;
     }
     
+    /**
+     * Returns a mew binary message containing the bits from (inclusive) to 
+     * end (exclusive).
+     * 
+     * @param start
+     * @param end
+     * @return
+     */
+    public BinaryMessage getSubMessage( int start, int end )
+    {
+    	BitSet subset = this.get( start, end );
+    	
+    	return new BinaryMessage( subset, end - start );
+    }
+    
     public CRC getCRC()
     {
     	return mCRC;
@@ -386,8 +400,6 @@ public class BinaryMessage extends BitSet
     		}
     	}
     	
-    	mLog.debug( "Value is:" + value );
-    	
     	return (byte)( value & 0xFF );
     }
 
@@ -613,6 +625,10 @@ public class BinaryMessage extends BitSet
 			{
 				set( offset + x );
 			}
+			else
+			{
+				clear( offset + x );
+			}
 		}
 	}