Remove remnant CSS of a previous project.
Add support for NULL values, no_escape parameter (for using mysql functions) and real escape all other values in update() and insert() in database.php
Rename classes/ to modules/
Fix PHPStorm warning
Add (password protected) admin controller. Remove auth controller. Add new auth module (inline authentication). Remove user module (code moved to auth module). Add sample admin view. Refactor index.php.
Merge remote-tracking branch 'origin/master'