Introduced lease/address deferred signals and events
client: initial address deferred processing
wickedd: forward lease deferred signals to client
dhcp: apply suse ifcfg dhcp options (bnc#866994)
dhcp6: dropped some unused code chunks
dhcp6: initial defer handling and no-addr cleanup
Merge pull request #380 from mtomaschewski/master-defer-lease
make ni_capture_retransmit static

Signed-off-by: Olaf Hering <olaf@aepfle.de>
Retransmit capture only if nretries is set in timeout

Signed-off-by: Olaf Hering <olaf@aepfle.de>
Handle DHCP4 retransmit timeout in fsm

Signed-off-by: Olaf Hering <olaf@aepfle.de>
remove unused initial_discovery_timeout, rename current_timeout

Signed-off-by: Olaf Hering <olaf@aepfle.de>