add addr.__contains__(), speed up copies, and check type/bits assignments
add addr.__contains__(), speed up copies, and check type/bits assignments


git-svn-id: 935794000d934034fad4bb4152be248a7507e5ff@509 0c474577-fa26-0410-a966-bdb198e94e9e

hellais/libdnet,hellais/libdnet,hellais/libdnet,hellais/libdnet