"using" instead of "typedef"

hello everyone,

with c++11 a "new" using declartion was introduced.
http://en.wikipedia.org/wiki/C%2B%2B11#Alias_templates

Something like this:
using HandlerPtr = std::shared_ptr<Handler>;
     instead of
typedef std::shared_ptr<Handler> HandlerPtr;

However, Doxygen does not support this and I want to ask if you may 
implement this.

Regards,

Marcel Hellwig

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