merged python binding fix from RC_0_16
don't use pointers to resume_data and file_priorities in add_torrent_params
merge fix from RC_0_16
fix client_test
add script to extract reference documentation from headers
minor rearranging and comments
regenerate documentation
reference doc tweak
cleaned up public interface by removing some symbols from the exported set
minor fix to reference documentation generator
don't expose load_file as a public function
documentation polish
print_entry should not be exported
is_hex should not be exported
fix typo
tidy up time.hpp a bit
remove unused member of alert_manager
none of the internal file abstraction should be exported from the library
documentation tweaks
documentation polish + todo comments in client_test.cpp