[boost] [typeof]documentation

Dear Arkadiy and Peder: First of all, thank you very much for your library. It helped me immensely this night. May I suggest, please, to add the respective #include(s) to the code snippets in your tutorials? Not a big problem, but at 2:30am it took maybe 15-20 minutes to find that a simple #include <boost/typeof/typeof.hpp> is what was needed. On the other hand, the namespace around every example namespace ex1 { // etc only distracts from the substance. Of course, the minor editing changes are not urgent at all. I understand that it is too late for 1_34, but may be it is not too late for 1_35? Thank you again, Yura.