Update rails to 4.0.3

Also updated dependencies and zurb foundation.
Remove deprecated configurations
Clean up design w/HTML5 Boilerplate
Remove unused partial template
Use bower to install vendor assets
Rename application.css to application.css.scss
Install normalize.css by bower
Install modernizr by bower
Temporary new design
Merge pull request #17 from qnyp/newdesign

新ロゴでとりあえずのリニューアル