Plugin not compatible with Kanboard 1.2.13

[MatthiasPetermann]

`[Sun Feb 23 13:24:12.555209 2020] [php7:error] [pid 23555] [client 192.168.2.100:61432] PHP Fatal error: Declaration of Kanboard\Plugin\Redmine\RedmineTaskProvider::fetch($uri) must be compatible with Kanboard\Core\ExternalTask\ExternalTaskProviderInterface::fetch($uri, $projectID) in /var/www/kanboard/plugins/Redmine/RedmineTaskProvider.php on line 16
[Sun Feb 23 13:26:19.473708 2020] [php7:error] [pid 10486] [client 192.168.2.100:61427] PHP Fatal error: Class Kanboard\Plugin\Redmine\RedmineTaskProvider contains 2 abstract methods and must therefore be declared abstract or implement the remaining methods (Kanboard\Core\ExternalTask\ExternalTaskProviderInterface::getIcon, Kanboard\Core\ExternalTask\ExternalTaskProviderInterface::getMenuAddLabel) in /var/www/kanboard/plugins/Redmine/RedmineTaskProvider.php on line 16
[Sun Feb 23 13:33:45.184943 2020] [php7:error] [pid 24637] [client 192.168.2.112:51630] PHP Fatal error: Declaration of Kanboard\Plugin\Redmine\RedmineTaskProvider::fetch($uri) must be compatible with Kanboard\Core\ExternalTask\ExternalTaskProviderInterface::fetch($uri, $projectID) in /var/www/kanboard/plugins/Redmine/RedmineTaskProvider.php on line 16
[Sun Feb 23 13:34:36.840640 2020] [php7:error] [pid 10486] [client 192.168.2.112:51651] PHP Fatal error: Declaration of Kanboard\Plugin\Redmine\RedmineTaskProvider::fetch($uri) must be compatible with Kanboard\Core\ExternalTask\ExternalTaskProviderInterface::fetch($uri, $projectID) in /var/www/kanboard/plugins/Redmine/RedmineTaskProvider.php on line 16

[Sun Feb 23 13:42:54.352481 2020] [php7:error] [pid 24715] [client 192.168.2.100:61332] PHP Fatal error: Uncaught Error: Call to undefined method Kanboard\Helper\TaskHelper::getNewTaskDropdown() in /var/www/kanboard/plugins/Redmine/Template/task/import.php:2\nStack trace:\n#0 /var/www/kanboard/app/Core/Template.php(83): include()\n#1 /var/www/kanboard/app/Template/external_task_creation/step1.php(8): Kanboard\Core\Template->render('Redmine:task/im...', Array)\n#2 /var/www/kanboard/app/Core/Template.php(83): include('/var/www/kanboa...')\n#3 /var/www/kanboard/app/Controller/ExternalTaskCreationController.php(33): Kanboard\Core\Template->render('external_task_c...', Array)\n#4 /var/www/kanboard/app/Core/Controller/Runner.php(77): Kanboard\Controller\ExternalTaskCreationController->step1()\n#5 /var/www/kanboard/app/Core/Controller/Runner.php(31): Kanboard\Core\Controller\Runner->executeController()\n#6 /var/www/kanboard/index.php(9): Kanboard\Core\Controller\Runner->execute()\n#7 {main}\n thrown in /var/www/kanboard/plugins/Redmine/Template/task/import.php on line 2
`