change stdlib dep to v3.0.0

The oldest version with `ensure_resource()`

.fixtures.yml

@@ -1,5 +1,8 @@
 fixtures:
   repositories:
-    "stdlib": "git://github.com/puppetlabs/puppetlabs-stdlib.git"
+    "stdlib":
+      repo: "git://github.com/puppetlabs/puppetlabs-stdlib.git"
+      ref: "3.0.0"
+
   symlinks:
     "udev": "#{source_dir}"

Modulefile

@@ -7,4 +7,4 @@ project_page 'https://github.com/jhoblitt/puppet-udev'
 source 'https://github.com/jhoblitt/puppet-udev.git'
 summary 'Manages the udev package and device rules'
 description 'Manages the udev package and device rules'
-dependency 'puppetlabs/stdlib', '>= 4.1.0'
+dependency 'puppetlabs/stdlib', '>= 3.0.0'