Initial Maven site implementation

src/main/java/org/slf4j/impl/StaticMDCBinder.java

@@ -58,6 +58,8 @@ public class StaticMDCBinder {
   /**
    * Currently this method always returns an instance of {@link BasicMDCAdapter}
    * .
+   * 
+   * @return never null.
    */
   public MDCAdapter getMDCA() {
     // note that this method is invoked only from within the static initializer