Fix dotenv config

We don't use 'dotenv-deployment' for production because it doesn't work
for our setup.
Remove turbolinks crap
Fix `deploy:restart` capistrano task
Don't display "Login" link
Fix 'config/initializers/scheduled_tasks.rb'
Put 'quiet_assets' gem into `:development` group
Put 'puma' gem into `:staging, :production` group
Remove 'rack-cache' gem
Load fonts from the very same host
Remove autofocus stuff
Remove publish form on network page
Set `config.force_ssl = true` for production env
Remove unnecessary CSRF protection
Symlink 'public/media' when deploying
Decrease padding for name and domain in header

This prevents the name and domain from unnecessarily wrapping.
Remove duplicate meta attribute