Reintroduce infrastructure for simple admin status pages
Add basic `jobs#index` page
Display output url on jobs index page
Add gems for debugging inline within development mode
Allow uploading epub file from within iHat.
Show converted url on `job#index` page
add show route for a particular job
Simplify job creation
Remove typo in page title
Fix broken specs
check for file existence and that it is not empty
Merge pull request #32 from Tahi-project/admin-screens

Admin screens