[Impasse] Replaced Boost version of shared_ptr and weak_ptr to STL counterpart

[y2s82]

fixes #108 #120 It also deleted the include<boost/shared_ptr.hpp> statements However, it did not delete the include<boost/serialization/shared_ptr.hpp> statements. The header seems to support STL and requires separate investigation before being removed.

[y2s82]

Currently, this build fails. The problem is that the old version of boost (1.54) runs serialize method as a member method. In the newer version of boost introduced support for using STL variants by making that method a helper function.

This conversion, therefore, requires an upgraded boost, which may break other things.

Old boost/serialization/access Newer boost/serialization/access Old boost/serialization/weak_ptr New boost/serialization/weak_ptr