Merged revision(s) 81844 from trunk:

Correct link to  http://www.stroustrup.com/wrapper.pdf in sp_techniques.html
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[SVN r81863]

libs/smart_ptr

@@ -1 +1 @@
-Subproject commit d42ce8755740855c12457478dd1b3ba06ec4277c
+Subproject commit 5fc6fe474b82b9015336d6b6db3bba07d522e6e4