Updated copyright and fixed trailing whitespaces

[SVN r79435]

example/doc_treap_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
@@ -70,7 +70,7 @@ int main()
 
    BaseSet baseset;
    MemberMultiset membermultiset;
-  
+
    //Now insert them in the sets
    for(VectIt it(values.begin()), itend(values.end()); it != itend; ++it){
       baseset.insert(*it);