Some in-progress(?) changes to front page
Some in-progress(?) changes to configs and routing
Make JS loading more robust
Move font loading into main JS script
Move some settings into categories._defaults
Rationalise config
Tidy up multiple identical alerts
Tidying
Fix front page menu
Add slogans
Improve error message
HTML tweak
Make settings more robust when configs are missing
Redirect from front page if there's only one category to show
Allow multiple greetings per category
Tweak greetings
Add setting for greeting_time
Allow loading of frontend JS on menu screen too