examples/event_import_file_sample1.tsv
"name" "category" "library_shortname" "start_at" "end_at" "dummy"
"イベント名" "カテゴリ。休館日の場合はclosed" "図書館名" "開始日" "終了日" "インポート省略"
"hogehoge" "おはなし会" "kamata" "2009-04-01" "2009-04-03"
"hogehoge" "hachioji"
"休館日" "closed" "kamata" "2011-04-01" "2011-04-03"