use default node attribute precedence
Merge pull request #9 from warwickp/attribute_precedence_chef11

use default node attribute precedence
add `name` to metadata (you're welcome, foodcritic)
bump 0.2.4
Merge branch 'master' of github.com:nmische/cookbook-simple-iptables

Conflicts:
	metadata.rb
	providers/rule.rb
Updated README to point to nmische/cookbook-simple-iptables travis build.