[Patch] Clean up and reformat to config/numeric and time

[Paolo Carlini]

Benjamin Kosnik wrote:

>> union { char *__s; wchar_t __w; } __u;
>> __u.__s = __nl_langinfo_l(_NL_NUMERIC_DECIMAL_POINT_WC, __cloc);
>> _M_data->_M_decimal_point = __u.__w;
>>    
>>
>This seems ok to me. 
>
>Jakub originally did this to deal with ia64 and 64 bit issues in
>general. You should probably test this new iteration of this code on a
>64 bit arch to be sure.
>  
>
Indeed. Testing on x86-64 went Ok. I'm currently testing on ia64 too with
no problems so far ('til 24_iterators no problems)

Thanks!
Paolo.