add closed tasks

- the entity has a new column / property "closed" (boolean)
- An event listener in created during container compilation, which listen on tasks
  status changed
- The taskworkflow manager and task workflow definition indicate if the tasks is closed ;
- Add list for closed tasks in controller, and change parameter 'date_status' to 'status';
- and change query to allow to filter on closed tasks

Resources/migrations/Version20180426093011.php

@@ -0,0 +1,28 @@
+<?php declare(strict_types = 1);
+
+namespace Application\Migrations;
+
+use Doctrine\DBAL\Migrations\AbstractMigration;
+use Doctrine\DBAL\Schema\Schema;
+
+/**
+ * Add a column 'closed' on tasks
+ */
+class Version20180426093011 extends AbstractMigration
+{
+    public function up(Schema $schema)
+    {
+        $this->abortIf($this->connection->getDatabasePlatform()->getName() !== 'postgresql', 'Migration can only be executed safely on \'postgresql\'.');
+
+        $this->addSql('ALTER TABLE chill_task.single_task ADD closed BOOLEAN DEFAULT \'false\' NOT NULL');
+        $this->addSql('ALTER TABLE chill_task.recurring_task ADD closed BOOLEAN DEFAULT \'false\' NOT NULL');
+    }
+
+    public function down(Schema $schema)
+    {
+        $this->abortIf($this->connection->getDatabasePlatform()->getName() !== 'postgresql', 'Migration can only be executed safely on \'postgresql\'.');
+
+        $this->addSql('ALTER TABLE chill_task.recurring_task DROP closed');
+        $this->addSql('ALTER TABLE chill_task.single_task DROP closed');
+    }
+}