update to 9.4

src/main/java/jp/sf/fess/Constants.java

@@ -24,7 +24,7 @@ import org.codelibs.core.util.StringUtil;
 public class Constants extends CoreLibConstants {
     public static final int MAJOR_VERSION = 9;
 
-    public static final int MINOR_VERSION = 3;
+    public static final int MINOR_VERSION = 4;
 
     public static final String FESS_VERSION = String.valueOf(MAJOR_VERSION)
             + "." + String.valueOf(MINOR_VERSION);