Merge pull request #2 from powerist/working

Format inception_arp.py
Add license: Apache 2.0
Remove ArpTable class and add bootstrap IP-to-MAC map

Also the code is formatted
Merge pull request #3 from changbl/working

Add licence, Remove ArpTable, and code formatting
Comment out the default IP to MAC mapping for gateway
All entries in arp table will be updated via source learning now
Add inception ARP pre-config bash script