added more model and association tests
AA changes, locked posts, comments for authors books and users arent visible, locked users cant lock in
photoname changed - imprint, contact page and locked screen edited
author_photos displayed in active admin and search_test updated
README.md modified
readme and seed fixes
buttons and app contr
New Welcome Page, Adding About, Editing Layout
merge + fix merge conflicts (tegel)
fix merge conflict + precompile
merge + fix merge conflicts (muntel) + precompile
merge + fix merge conflicts (timo) + precompile