Moved smart_ptr contents to subdirectories, switched to a local test/Jamfile.

[SVN r17042]

example/scoped_ptr_example.hpp

@@ -0,0 +1,22 @@
+//  Boost scoped_ptr_example header file  ------------------------------------//
+
+#include <boost/utility.hpp>
+#include <boost/scoped_ptr.hpp>
+
+//  The point of this example is to prove that even though
+//  example::implementation is an incomplete type in translation units using
+//  this header, scoped_ptr< implementation > is still valid because the type
+//  is complete where it counts - in the inplementation translation unit where
+//  destruction is actually instantiated.
+
+class example : private boost::noncopyable
+{
+ public:
+  example();
+  ~example();
+  void do_something();
+ private:
+  class implementation;
+  boost::scoped_ptr< implementation > _imp; // hide implementation details
+};
+