refs 4983 select and mail reminder mail
refs 4083 access to attributes of user_group
noriのversionを修正
refs 4422 add ststem configuration for statistics and users
Merge branch 'master' of github.com:nakamura-akifumi/enju_trunk

Conflicts:
	db/fixtures/system_configurations.yml
enju_message,enju_eventのリポジトリ名変更に伴い
refs4429 不要ファイルの削除
refs correct path for topic path
Merge branch 'master' of github.com:nakamura-akifumi/enju_trunk
refs 4432 set footer message on system configuration