Returns the list of the visible tickets for the user
GET '/api/v2/tickets': [ { "id": 1, "title": "first ticket", "tags": ["tag1","tag2"], "small_summary": "text", "content": "text", "status": "Planned", "user_id": 22, "created_at": "2014-05-20T14:41:41+02:00", "updated_at": "2014-05-20T14:41:41+02:00" }, { "id": 2, "title": "second ticket", "tags": ["tag1","tag2"], "small_summary": "text", "content": "text", "status": "In Progress", "user_id": 24, "created_at": "2014-05-20T14:41:41+02:00", "updated_at": "2014-05-20T14:41:41+02:00" } ]