This commit updates the boost libraries to version 1.65.0

This new version brings two new libraries:
 - Boost.Stacktrace [1]
   -> Gather, store, copy and print backtraces, from Antony Polukhin.
 - Boost.PolyCollection [2]
   -> Fast containers of polymorphic objects, from Joaquín M López Muñoz.

Fixes in this commit:
 - Boost.Python for Python 3.6
   -> The dynamic library was not being compiled, resulting in an empty package. Fixed.
 - Boost.TypeErasure
   -> The dynamic library was not available to install. Fixed.
 - Boost.Serialization
   -> The wserialization dynamic library was being compiled but not available to install. Fixed.

Extras:
 - This commit also contains the post-release fixes, which did not make it into the final release [3].

As always, more information about this release, can be found in [4].

[1]: http://www.boost.org/doc/libs/1_65_0/doc/html/stacktrace.html
[2]: http://www.boost.org/doc/libs/1_65_0/doc/html/poly_collection.html
[3]: http://www.boost.org/patches/
[4]: http://www.boost.org/users/history/version_1_65_0.html

Signed-off-by: Carlos Miguel Ferreira <carlosmf.pt@gmail.com>