policy: allow non-local admin sessions to control the network (rh #1145646)
cli: Add mode option for wifi connecitons

Only default (infrastructure) mode connections can be created and as it's not
possible to write mode=ap connections with ifcfg-rh plugins, they can't be
switched to mode=ap.
wifi: Use SSID from connection also if AP is not configured

Creating a mode=ap connection (as GNOME control center does) would otherwise
assert in complete_connection despite having a proper SSID set:

NetworkManager-wifi:ERROR:nm-device-wifi.c:1118:complete_connection: assertion failed: (ssid)
Aborted
Merge remote-tracking branches 'lr/lr-unmanaged-slaves', 'lr/lr-ipv6-tokens', 'lr/lr-ap', 'lr/lr-rdisc-mtu' and 'lr/lr-rpm-build' into integration