nmcli gets NM version and compares it with its own and complains
when they differ. This is to indicate that the results are not reliable,
because the API could differ. '--nocheck' switches the checks off.
DISCONNECTING: the only active network connection is now being disconnected
LOCAL, SITE, GLOBAL: one-stop items for level of connectivity, which
we'll use to show when we think we're actually connected to the internet
or behind a captive portal or something
When getting status of NetworkManager via 'nmcli nm ...' and NetworkManager
is not running, do not call its D-Bus methods. It prevents NM to be implicitly
executed when configured as D-Bus activated service.
'enable' command queries and sets NetworkingEnabled property. It should be used
by users. Previous 'sleep' command that actually did enable/disable,
really calls Sleep() now and is not meant for common usage.
Modifications are mainly for multiline mode to ease parsing - each
field name is prefixed with a section name.
'dev list' now also supports printing particular sections specifed via
'--fields' option.
