Abandon Ruby 1.8 support.
Disable 1.8 on travis and update bundled gems.
Use -> for lambda.
Updated TODO list.
Updated TODO list.
Refactor Pio::Lldp::Options.
Merge pull request #23 from trema/feature/refactor_lldp_options

Refactor Pio::Lldp::Options.
Updated TODO list.
Updated TODO list.
Updated TODO list.
Remove redundant _ADDRESS postfix.
Remove unnecessary Mac#to_a.
Updated TODO list.
Updated TODO list.
Rewrite arp/request_spec.rb using rspec_given.
Merge branch 'feature/refactor_arp_request' into feature/refactor_arp

Conflicts:
	pio.org_archive
Rewrite arp/reply_spec.rb using rspec_given.
Updated TODO list.
Refactor Arp::Request.
Refactor Arp::Reply.