Remove <pre> styling because of bootstrap
Create records scaffold
Index only records for selected zone, rename type column to kind, add select box for zone_id and remove edit action
Create zonefile helper for zone controller
Simply show zonefile in zone show view
Update models and implement some simple output
Fix records tests
Merge branch 'zonefiles' of github.com:pdostal/dnsAdmin into zonefiles

Conflicts:
	app/helpers/records_helper.rb
	app/models/record.rb
	test/controllers/records_controller_test.rb
	test/fixtures/records.yml