add USEFUL_ARRAY_PLACEMENT_NEW

add storage_arrary base class initialisers to copy constructors to avoid compiler warnings


[SVN r25514]

libs/numeric/ublas

@@ -1 +1 @@
-Subproject commit 498a600cdf851945c0ed5d29f7f7eb4f7da8f171
+Subproject commit 8d94f1f1a2a58edef0db9a5ce76c9cc3e9ce6308