refs 6552 ItemHasOperator
delete numbering scope
Merge branch 'master' of https://github.com/MiraitSystems/enju_trunk
add date_of_dicontinuance to manifestations
Merge remote-tracking branch 'origin/master'
refs 6628 modified Bookbinding

search with identifier, date_of_publication, numbers
modified add_manifestation_exinfos, add_manifestation_extexts
add observe field for manifestation
Merge branch 'master' of github.com:MiraitSystems/enju_trunk
refs 6552 システム設定の記述向けの追加
dis_dateカレンダーの表示設定
refs 6628 modified Bookbinding
refs 6721 search manifestations with Manifestation#identifier
Merge branch 'master' of github.com:MiraitSystems/enju_trunk
Merge branch 'master' of https://github.com/MiraitSystems/enju_trunk
add migration file to add order_id column to items
refs 6199 numberingの修正
Merge remote-tracking branch 'origin/master'
add index
Merge branch 'master' of https://github.com/MiraitSystems/enju_trunk
refs 6754 フラグメントキャッシュの削除処理を修正。