Add bower & drop foundation 4 files
Drop old .markdown.erb files
Update gemfile for google analytics & navtree
Add custom JavaScript animation layout
[gem] Add middleman-syntax for code style
Add summary for homepage
Add animate.css & activate middleman-syntax
Update color
Update homepage description summary
Reafactor summary order
Update icon & fix for responsive
Merge branch 'refactor-smoothState' of https://github.com/flexbox/CSS-Guidelines into website