random improvements (#5506)

* fix order of destroying form elements
* API documentation - fixes #1949
* make command path independent
* use PhpSubprocess to execute migrations
* allow to configure optional SAML attributes
* fix deprecation
* unify wording of exported state - fixes #5392

src/Form/MultiUpdate/TimesheetMultiUpdate.php

@@ -183,8 +183,8 @@ final class TimesheetMultiUpdate extends AbstractType
                 'label' => 'mark_as_exported',
                 'required' => false,
                 'choices' => [
-                    'entryState.exported' => true,
-                    'entryState.not_exported' => false
+                    'yes' => true,
+                    'no' => false
                 ]
             ]);
         }