- dyncallback: fix for calling back win/x64 C++ methods returning non-trivial aggregates (thanks Raphael!) - test/callback_plain_c++: * added test code for C++ method callbacks returning non-trivial aggregates * makefile linker command fix (was linking assuming c and not c++) - test/plain_c++: comments for completeness

Daniel Adler <dadler@uni-goettingen.de>
Tassilo Philipp <tphilipp@potion-studios.com>
Olivier Chafik <olivier.chafik@gmail.com>
Erik Mackdanz <erikmack@gmail.com>
Masanori Mitsugi <mitsugi@linux.vnet.ibm.com>
Bernhard Urban-Forster <beurba@microsoft.com>