add reply link
Merge branch 'master' into reply
create comments#new template
move and rename comments_form partial
create new.js in comments folder
find @page resource for comments#new template
add id and remote: true for reply link
hide reply link and replace with form
delete new.js.html and replace with new.js.erb
create styles for nested comments
refactor create method to respond to js
add remote => true attribute
add comments-div id
create create.js for comments