Added a view method for assembling the setting editing template
Added the update_books items to AppSettings. Though some files weren't transferred as they aren't necessary for the settings.
Added urls for the settings edit page
Now the edit_setting view handles loading up the content for one AppSetting
The setting listing page no longer has checkboxes or inputs, but provides links to each setting to edit it individually
Added a form for handling AppSettings
Now the AppSettings view responds to GET requests for a single setting and can send an appsetting to the editing page.
Fixed the form for AppSettings and added a URL mapping to it so that we can now edit a setting (though saving is not yet implemented