增加 CSS 书写规范 url
Added more on develop environment
Ignore unnecessary files in _site
Merge branch 'gh-pages' of github.com:thx/cube into daily/1.0.6
删除 form.css
Refactored layout structure, added more content
Merge remote-tracking branch 'origin/gh-pages' into gh-pages
type.css 是相对独立的，不合并到 cube.css
Merge branch 'gh-pages' of github.com:thx/cube into daily/1.0.6

Conflicts:
	Gruntfile.js
删除 BOM
Merge branch 'gh-pages' of github.com:thx/cube into daily/1.0.9

Conflicts:
	CONTRIBUTING.md
	_config.yml
	_includes/tocTpl.html
	_layouts/default.html
	assets/app.js
	assets/style.css
	build/cube-min.css
	build/cube.css
	build/layout-min.css
	build/layout.css
	build/utils-min.css
	build/utils.css
	doc/index.md
	index.md
	src/layout.css