Allow project managers to remove tasks

app/Model/Acl.php

@@ -52,7 +52,6 @@ class Acl extends Base
         'category' => '*',
         'project' => array('edit', 'update', 'exporttasks', 'exportdailyprojectsummary', 'share', 'integration', 'users', 'alloweverybody', 'allow', 'setowner', 'revoke', 'duplicate', 'disable', 'enable'),
         'swimlane' => '*',
-        'task' => array('remove'),
     );
 
     /**

app/Model/ProjectPermission.php

@@ -198,7 +198,7 @@ class ProjectPermission extends Base
                     ->table(self::TABLE)
                     ->eq('project_id', $project_id)
                     ->eq('user_id', $user_id)
-                    ->update(array('is_owner' => $is_owner));
+                    ->update(array('is_owner' => (int) $is_owner));
     }
 
     /**

app/Model/TaskPermission.php

@@ -20,7 +20,7 @@ class TaskPermission extends Base
      */
     public function canRemoveTask(array $task)
     {
-        if ($this->userSession->isAdmin()) {
+        if ($this->userSession->isAdmin() || $this->projectPermission->isManager($task['project_id'], $this->userSession->getId())) {
             return true;
         }
         else if (isset($task['creator_id']) && $task['creator_id'] == $this->userSession->getId()) {