Rename user cohorts -> cohorts

app/assets/javascripts/dispatcher.js

@@ -363,7 +363,7 @@ const ShortcutsBlob = require('./shortcuts_blob');
           new Admin();
           switch (path[1]) {
             case 'application_settings':
-            case 'user_cohorts':
+            case 'cohorts':
               new gl.ApplicationSettings();
               break;
             case 'groups':

app/controllers/admin/user_cohorts_controller.rb → app/controllers/admin/cohorts_controller.rb

-class Admin::UserCohortsController < Admin::ApplicationController
+class Admin::CohortsController < Admin::ApplicationController
   def index
     if ApplicationSetting.current.usage_ping_enabled
-      @cohorts = Rails.cache.fetch('user_cohorts', expires_in: 1.day) do
-        UserCohortsService.new.execute
+      @cohorts = Rails.cache.fetch('cohorts', expires_in: 1.day) do
+        CohortsService.new.execute
       end
     end
   end

app/services/user_cohorts_service.rb → app/services/cohorts_service.rb

-class UserCohortsService
+class CohortsService
   MONTHS_INCLUDED = 12
 
   # Get a hash that looks like:

app/views/admin/dashboard/_head.html.haml

@@ -27,7 +27,7 @@
           = link_to admin_runners_path, title: 'Runners' do
             %span
               Runners
-        = nav_link path: 'user_cohorts#index' do
-          = link_to admin_user_cohorts_path, title: 'User cohorts' do
+        = nav_link path: 'cohorts#index' do
+          = link_to admin_cohorts_path, title: 'Cohorts' do
             %span
-              User cohorts
+              Cohorts

config/routes/admin.rb

@@ -133,7 +133,7 @@ namespace :admin do
     end
   end
 
-  resources :user_cohorts, only: :index
+  resources :cohorts, only: :index
 
   resources :builds, only: :index do
     collection do

spec/services/user_cohorts_service_spec.rb → spec/services/cohorts_service_spec.rb

 require 'spec_helper'
 
-describe UserCohortsService do
+describe CohortsService do
   describe '#execute' do
     def month_start(months_ago)
       months_ago.months.ago.beginning_of_month.to_date