Added bootstrap-sass gem
Integrated bootstap with js and css
Added navbar
Removed scaffolds styles
Updated navbar
Added header
Added bootstrap for posts
Centered each post images
Added footer
Added style for pager
Created BootstrapHTMLRenderer
Added time_difference gem
Created HumanizedTimeDifference
Added method humanized_time_difference to CommentPostDecorator
Added bootstrap for comment list
Added bootstrap for comment form
Added length validators for CommentPost
Added locales for comment form
Added link to comments
Replaced extension html.erb with erb for each file