Fix build target "javadoc-build"

These errors blocked the build:
- src/com/muchsoft/util/Sys.java:32: error: reference not found
- src/ika/colororacle/ColorOracle.java:199: error: unknown tag: description
- src/ika/colororacle/Simulator.java:77: error: unknown tag: normal

src/com/muchsoft/util/Sys.java

@@ -29,7 +29,7 @@ package com.muchsoft.util;
  * <p><b>Version History:</b></p>
  * <dl>
  *   <dt> 2004-10-13
- *   <dd> Added a new package, com.muchsoft.util.mac, and a new class, {@link Mac}.
+ *   <dd> Added a new package, com.muchsoft.util.mac, and a new class, Mac.
  *   <dt> 2004-05-04
  *   <dd> isMacOSX() now matches <a href="http://developer.apple.com/technotes/tn2002/tn2110.html">http://developer.apple.com/technotes/tn2002/tn2110.html</a>
  *   <dt> 2003-12-02

src/ika/colororacle/ColorOracle.java

@@ -196,7 +196,7 @@ public class ColorOracle extends WindowAdapter implements KeyListener, FocusList
      * Loads a raster icon from the /ika/icons/ folder.
      *
      * @param name The name of the icon.
-     * @description A description of the icon that is attached to it.
+     * @param description A description of the icon that is attached to it.
      * @return An ImageIcon.
      *
      */

src/ika/colororacle/Simulator.java

@@ -74,7 +74,7 @@ public class Simulator {
     /**
      * Filter an image and return a new image with the filtered result.
      *
-     * @normal The image with normal vision.
+     * @param normal The image with normal vision.
      * @return The image with simulated color vision impairment.
      */
     protected BufferedImage filter(BufferedImage normal) {