Updated copyright and fixed trailing whitespaces

[SVN r79435]

example/doc_splay_set.cpp

@@ -1,6 +1,6 @@
 /////////////////////////////////////////////////////////////////////////////
 //
-// (C) Copyright Ion Gaztanaga  2006-2009
+// (C) Copyright Ion Gaztanaga  2006-2012
 //
 // Distributed under the Boost Software License, Version 1.0.
 //    (See accompanying file LICENSE_1_0.txt or copy at
@@ -20,7 +20,7 @@ using namespace boost::intrusive;
 class MyClass
    : public splay_set_base_hook<>   //This is an splay tree base hook
    , public bs_set_base_hook<>      //This is a binary search tree base hook
-        
+
 {
    int int_;