Added a helova lot of admin and session files. Most are generated.
Added test for sessions and added destroy action that I forgot.
added redirect to login for admin pages.
fixed tests broken by login redirect.
Added admin links to sidebar.
Added code to prevent deleting the last admin
Added i18n setup and route configuration
Sed up application.html.erb to use i18n bindings. Downloaded language
yaml from book site.
added several i18n translation spots
Finished off i18n locations.
Added language switcher