Revert "Removed extraneous author javadocs"

This reverts commit 888abc9e2a.

src/main/java/org/kohsuke/github/GHFileNotFoundException.java

@@ -9,6 +9,8 @@ import javax.annotation.Nonnull;
 
 /**
  * Request/responce contains useful metadata. Custom exception allows store info for next diagnostics.
+ *
+ * @author Kanstantsin Shautsou
  */
 public class GHFileNotFoundException extends FileNotFoundException {
     protected Map<String, List<String>> responseHeaderFields;