Add a named route to access the Wizard

This lets us use the wizard_path inside the views which will correctly detect
if we are running from a sub-folder behind apache (e.g. /dradis/wizard).

I have also updated the link to the Wizard in the login page.

This commit refs #5

app/views/sessions/new.html.erb

@@ -1,4 +1,4 @@
-<p id="wizard">Not familiar with Dradis? Checkout the <a href="/wizard">Wizard</a>.</p>
+<p id="wizard">Not familiar with Dradis? Checkout the <%= link_to 'Wizard', wizard_path %></a>.</p>
 <p>You will only be able to log in if you know this server's password.</p>
 
 <%= form_tag session_path do -%>

config/routes.rb

@@ -4,6 +4,8 @@
   match '/login' => 'sessions#new', :as => :login
   match '/logout' => 'sessions#destroy', :as => :logout
 
+  match '/wizard' => 'wizard#index', :as => :wizard
+
   resources :configurations
   resources :categories
   resources :feeds