pidgin/pidgin

Move common_sockaddr_t back to purpleprivate.h and ignore purpleprivate.h from the docs.
pidgin3_xml = configure_file(
input : 'pidgin3.xml.in',
output : 'pidgin3.xml',
configuration : version_conf,
install : true,
install_dir : join_paths(get_option('datadir'), 'glade', 'catalogs'))