boost::mt19937 is sometimes used in header files as member. How do we migrate to std::mt19937 there? A typedef doesn't work, because e.g. boost::variate_generator doesn't exists in final C++11 spec (was only in tr1).

So there are two options:

• Hardcut for this members. Everyone, who inherits from this classes, needs ti adjust their code from PCL 1.9.1 to 1.10.0 in case they are using this member.
• typedef + #ifdef (don't know if we want many new #ifdefs)
• typedef and increase/define minimum required boost version, in case Boost implemented C++11 spec