comment things; add png

Signed-off-by: Oleg Verych <olecom@gmail.com>
lib/cnl fixes: exit codes, run && default cond, status update

Signed-off-by: Oleg Verych <olecom@gmail.com>
view.ControlTools: bind all api commands to one button via 'iconCls'

Signed-off-by: Oleg Verych <olecom@gmail.com>
fix view.LFTPD->changedModel(): define initial `mdata.prests`

or first ever check skips updates of status images

Signed-off-by: Oleg Verych <olecom@gmail.com>