libnm-core: (trivial) indent NMSettingCompareFlags description for readibility
libnm-core: add NM_SETTING_COMPARE_FLAG_IGNORE_TIMESTAMP flag

for ignoring timestamp when comparing settings or connections.
cli: ignore timestamp when comparing connections in the editor
merge: add a flag for ignoring timestamp and use it in nmcli (rh #1122995)

NM_SETTING_COMPARE_FLAG_IGNORE_TIMESTAMP can be used to ignore timestamp
while comparing connections.

https://bugzilla.redhat.com/show_bug.cgi?id=1122995
cli: fix showing secrets in nmcli editor (bgo #737415)

Put secrets into the local connection.

https://bugzilla.gnome.org/show_bug.cgi?id=737415