modify KNOWN_ISSUES.TXT

Signed-off-by: Chess Griffin <chess.griffin@gmail.com>
Merge branch 'willysr'
Update README and slack-desc for all packages in testing/

Signed-off-by: Willy Sudiarto Raharjo <willysr@gmail.com>
Move mate-netspeed and mate-utils into extra/

Signed-off-by: Willy Sudiarto Raharjo <willysr@gmail.com>