Limited Python/Ruby support for boost::array

Hack to use the std::array support for boost::array.
Is limited as it currently exposes some 'using' bugs in SWIG.
For example, the type system fails to see that pointers to std::array
and pointers to boost::array are the same.

This approach saves having to maintain separate boost::array support.
The 'using' bug ought to be fixed, otherwise separate boost_array.i
files could be easily made from the std_array.i files.

Lib/std/std_array.i

@@ -40,9 +40,6 @@
 //      for consistency, they expect and return a plain array pointer.
 // ------------------------------------------------------------------------
 
-%{
-#include <array>
-%}
 
 // exported classes