manageclasses.tpl: add rating and status fields
editclass.tpl: Add rating and status options
edit_class.php: inputhandler for class updated
_install_db.sql: Classification includes ratings
classification.php: support pdga
edit_class: use shorthand A/P like gender does
fi-FI: new strings for pdga related fields
data_access: support pdga
fi-FI: amateur/professional translations
editclass: support amateur/pro selection
editclass: check positive integer values for rating fields
data_access: fixes for pdga
manageclasses: fix pdga status output