Fixed javadoc warnings.

src/main/java/org/orekit/rugged/errors/RuggedException.java

@@ -27,7 +27,7 @@ import org.hipparchus.exception.LocalizedException;
  * the rugged library classes.
 
  * <p>
- * This class is heavily based on Orekit {@link org.orekit.errors.OrekitException},
+ * This class is heavily based on {@code OrekitException},
  * which is distributed under the terms of the Apache License V2.
  * </p>
  *

src/main/java/org/orekit/rugged/errors/RuggedExceptionWrapper.java

@@ -22,7 +22,7 @@ package org.orekit.rugged.errors;
  * this exception. Typical examples are propagation methods that are used inside Hipparchus
  * optimizers, integrators or solvers.</p>
  * <p>
- * This class is heavily based on Orekit {@link org.orekit.errors.OrekitException},
+ * This class is heavily based on {@code OrekitException},
  * which is distributed under the terms of the Apache License V2.
  * </p>
  * @author Luc Maisonobe

src/main/java/org/orekit/rugged/errors/RuggedMessages.java

@@ -43,7 +43,7 @@ import org.hipparchus.exception.Localizable;
  * translation is missing.
  * </p>
  * <p>
- * This class is heavily based on Orekit {@link org.orekit.errors.OrekitMessages},
+ * This class is heavily based on {@code OrekitMessages},
  * which is distributed under the terms of the Apache License V2.
  * </p>
  */