manual: - adding aggregate passing and returning info for x64 (win and sysv, however, *only* w/ respect to types supported by dyncall) - python binding text cleanup and sync with current binding version - added suite_aggrs description and cleaned up other test suite descriptions a bit - update list of calling convention modes - cleanup and minor other fixes (e.g. changed \newpage in many places to \clearpage to avoid hitting float limit, crlf->cr, ...)

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>