fix: mandatory language key.
update: giving some top space.
fix: form path. remove: unecessary article id that comes into url.
update: gems and groups.
update: extracting configurations.
update: configuring title for articles.
add: for support draft article that has not a published_at date.
update: letting the buttons cleaner.
rename: to be equal of js.
minor
remove: using application for admin too.
remove: lets use just text when we need of loading message.
remove: preview now is on original show page.
add: listing drafts on admin index.
fix: route with singular resources, it should be on plural.
update: using jquery taby on comments.
update: letting comment textarea with same size that inputs.
fix: showing edit comment link only for logged users.
feature: article edition.
toc: using symbol.