ethernet: handle ethtool offload as independent structure
ethtool: Refactor handling of independed ethtool ioctl

One ioctl failing should not block the other ones.
dbus: omit ethernet speed,duplex,autoneg defaults
Merge pull request #452 from pwieczorkiewicz/ethtool-nofail

ethernet: Do not fail when ETHTOOL_GSET/SSET fails (bnc#900112)
Merge pull request #454 from mtomaschewski/ethtool-defaults

dbus: omit ethernet speed,duplex,autoneg defaults
version 0.6.12
fsm: perform tentative check on all started interfaces (nanny)
Merge pull request #455 from pwieczorkiewicz/tentative_fix

fsm: perform tentative check on all started interfaces with nanny (bnc#900951)