Show the NeoPass testing form link to 25% of users on the homepage

It's happening! ✨

app/controllers/outfits_controller.rb

@@ -47,6 +47,9 @@ class OutfitsController < ApplicationController
   end
 
   def new
+    session[:neopass_test_group] ||= rand(0..99)
+    @neopass_test_group = session[:neopass_test_group]
+
     @colors = Color.funny.alphabetical
     @species = Species.alphabetical
 

app/views/outfits/new.html.haml

@@ -18,6 +18,12 @@
       %br
       = link_to "Here's what's coming and why.", about_neopass_path
 
+    - if @neopass_test_group < 25
+      %p
+        %strong ➡️ We're starting limited testing today!
+        = link_to "Here's the secret info if you'd like to take a look!",
+          "https://forms.gle/hEkw5bXY1W4YhUZb7"
+
 #outfit-forms
   - localized_cache :action_suffix => 'outfit_forms_intro' do
     #pet-preview