fix: node_filter
Merge branch 'master' of github.com:shirasagi/shirasagi
remove unused method
Merge branch 'master' of github.com:shirasagi/shirasagi
fix install.txt
fix history_backup

add fields: ref_class, user_id
assets:precompile
fix design for node routes
add scope: SS::Document#keyword_in
remove partial stylesheets
fix public_filter: add notice