Fix not_in_project scope. Added counters in admin -> users. Improved seeds

app/views/admin/users/index.html.haml

@@ -1,5 +1,5 @@
 %h3.page_title
-  Users (#{@admin_users.count})
+  Users
   = link_to 'New User', new_admin_user_path, class: "btn small right"
 %br
 
@@ -8,16 +8,21 @@
   = submit_tag "Search", class: "btn submit primary"
 %ul.nav.nav-tabs
   %li{class: "#{'active' unless params[:filter]}"}
-    = link_to "Active", admin_users_path
+    = link_to admin_users_path do
+      Active
+      %span.badge= User.active.count
   %li{class: "#{'active' if params[:filter] == "admins"}"}
     = link_to admin_users_path(filter: "admins") do
       Admins
+      %span.badge= User.admins.count
   %li{class: "#{'active' if params[:filter] == "blocked"}"}
     = link_to admin_users_path(filter: "blocked") do
       Blocked
+      %span.badge= User.blocked.count
   %li{class: "#{'active' if params[:filter] == "wop"}"}
     = link_to admin_users_path(filter: "wop") do
       Without projects
+      %span.badge= User.without_projects.count
 
 %table
   %thead