Updates pull request from Roman Tsypuk to convert the build system from

ant to gradle.  Removes linux and windows application launch scripts and
produces an executable jar with all resources included.

src/main/java/io/github/dsheirer/edac/Golay18.java

@@ -0,0 +1,53 @@
+package io.github.dsheirer.edac;
+
+import io.github.dsheirer.bits.BinaryMessage;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/*******************************************************************************
+ *     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/>
+ *     -----------------------------------------------------------------------
+ *     Galois24 decoder based on Hank Wallace's tutorial/algorithm located at:
+ *     http://www.aqdi.com/golay.htm
+ ******************************************************************************/
+
+/**
+ * Golay 18/6/8 decoder.  Uses the Golay24 edac class to perform edac on Golay
+ * 18 messages by treating the Golay 18 message as a Golay 24 message with the
+ * left-most 6 bits set to zero.
+ */
+public class Golay18
+{
+	private final static Logger mLog = LoggerFactory.getLogger( Golay18.class );
+
+	/**
+	 * Performs error detection and correction.
+	 */
+	public static void checkAndCorrect( BinaryMessage message, int startIndex )
+	{
+		int value = message.getInt( startIndex, startIndex + 17 );
+
+		BinaryMessage temp = new BinaryMessage( 24 );
+		temp.load( 6, 18, value );
+
+		BinaryMessage corrected = Golay24.checkAndCorrect( temp, 0 );
+
+		int correctedValue = corrected.getInt( 6, 23 );
+		
+		message.load( startIndex, 18, correctedValue );
+	}
+}