CodeStyle
Fix: #4389 - move the CSRF token to the end of all forms, so we can detect truncated input variables
Convert controller to request handlers
Use POST+GET in upgrade wizard
Working on routing
Fix: #2607 - site logs don't work with new routing
Use .phtml extension for template files
Code style
Refactor views
Convert upgrade wizard to http/controller
Convert PGV import wizard to http/controller