Include boost/ptr_container/ptr_vector.hpp at the beginning again.

This might fix
"workdir/UnpackedTarball/boost/boost/ptr_container/detail/static_move_ptr.hpp:154:46:
error: macro "check" passed 2 arguments, but takes just 1" ?

Change-Id: Ie8504149f7d2853a631b47186f5ca46cdf96b79e