Update ruby version for circle builds
fixes #5585
Scope query to just orders line items.

Fixes #5594
View customization body id typo fix

From @phuisman88 https://github.com/spree/spree-guides/pull/253/files
add guide for S3 storage
set the encoding to utf-8 for the guides
set the nanoc encoding config at the right spot as per http://www.thehorrors.org.uk/snippets/nanoc-utf-8/
Remove n+1 line item lookup. Fixes #5481