Seed plans data quietly on tests

Replaces:

== Seed from /Users/osw/projects/gitlab/gdk-ee/gitlab/db/fixtures/test/01_plan.rb
 - Plan {:name=>"free", :title=>"Free"}
 - Plan {:name=>"bronze", :title=>"Bronze"}
 - Plan {:name=>"silver", :title=>"Silver"}
 - Plan {:name=>"gold", :title=>"Gold"}
 - Plan {:name=>"early_adopter", :title=>"Early Adopter"}

By:

== Seed from /Users/osw/projects/gitlab/gdk-ee/gitlab/db/fixtures/test/01_plan.rb

On rspec tests output.