Modifications related to timers and others:
Modifications related to timers and others:

* eliminate global variables
* create get_timeout method to obtain Automaton timeouts
* change resend packet logic
* move timers related to lease time to dhcpcaplease
* remove logging
* add logger for scapy
* add scapy conf

juga0/dhcpcanon,juxor/dhcpcanon_debian,juga0/dhcpcanon,DHCPAP/dhcpcanon,DHCPAP/dhcpcanon,juxor/dhcpcanon_debian