[boost] [math] calculate derivative automatically.

Hi, I notice that some one may not have vc++9 with sp1, if so, there will be many compile errors. because I use #include <tuple>, the earlier version does not have such a library. so I made a version for boost::tuples::tuple. a file named "[math]AD.zip" in vault. BTW: I am wondering whether I do something wrong, there is no responding about this subject for a long time. Dongfei.