Fix tests

Run options: --seed 50522

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Finished in 0.304999s, 59.0165 runs/s, 104.9183 assertions/s.

1) Failure:
RecordsControllerTest#test_should_destroy_record [/home/rof/src/github.com/pdostal/dnsAdmin/test/controllers/records_controller_test.rb:42]:
Expected response to be a redirect to <http://test.host/records> but was a redirect to <http://test.host/records?zone_id=1>.
Expected "http://test.host/records" to be === "http://test.host/records?zone_id=1".

2) Error:
ZonesControllerTest#test_should_show_zone:
ActionView::Template::Error:  method `four' for nil:NilClass
app/helpers/records_helper.rb:21:in `block in zonefile'
app/helpers/records_helper.rb:20:in `each'
app/helpers/records_helper.rb:20:in `zonefile'
app/views/zones/show.html.erb:34:in `_app_views_zones_show_html_erb___2374739184312050541_56789980'
test/controllers/zones_controller_test.rb:28:in `block in <class:ZonesControllerTest>'

18 runs, 32 assertions, 1 failures, 1 errors, 0 skips