Added support for calling enable_shared_from_this::shared_from_this in

constructors.  Closes #1696.



[SVN r43738]

libs/smart_ptr

@@ -1 +1 @@
-Subproject commit 2eb3991630d138b43b4e4ea13da2efa444a1e21c
+Subproject commit 1c2d780f9ef00068a75635fbdcde2f64de2d7aed