Moving away from the idea of multiple user levels, users will either
have full access or no access
Swapped all userLevel session vars to a loggedIn var, which is a bool
Makes things simpler and paves the way towards the new login screen
(before you see any files, code etc)
Unminify for user readability, can uglify in production use
Add fileTypesArray to define supported filetypes
If we have a file without a supported filetype, use ext-file as default
