RESIZE FIXES

Drop incorrect element requirement to be value_type(0) constructable
use matrix_resize_preserve where possible
c_vector/matrix don't initialise on construction


[SVN r26961]

libs/numeric/ublas

@@ -1 +1 @@
-Subproject commit 6a41685cffec28452d51140ba353a6b2f4a3b41d
+Subproject commit 81c17bfc83ad0cbfb97d2a312652e78205581705