add scrollbar
update index page
update checkbox
Merge branch 'dev' into scrollbar

Conflicts:
	build/css/sui-all.css
	build/css/sui-all.min.css
	build/css/sui.css
	build/css/sui.min.css
	docs/breadcrumb.html
	docs/button-groups.html
	docs/buttons.html
	docs/dialog.html
	docs/dropdown-js.html
	docs/dropdown.html
	docs/form-validate.html
	docs/forms.html
	docs/global.html
	docs/grid.html
	docs/icons.html
	docs/label.html
	docs/layout.html
	docs/msgs.html
	docs/pagination-js.html
	docs/pagination.html
	docs/progress.html
	docs/steps.html
	docs/tab-js.html
	docs/tab.html
	docs/tables.html
	docs/tooltip.html
	less/sui.less
scroll bar small
update
Merge remote-tracking branch 'sui/dev' into dev

Conflicts:
	docs/templates/download.jade
	docs/templates/index.jade
update cdn
Merge remote-tracking branch 'sui/scrollbar' into dev
change forms horizental from display:inline-block to display: table-cell
update doc
Merge branch 'dev' into forms
update form doc
Merge pull request #16 from sdc-alibaba/forms

change forms horizental from display:inline-block to display: table-cell
update doc
Merge remote-tracking branch 'sui/dev' into dev

Conflicts:
	docs/templates/navbar.jade
	docs/templates/tutorial.jade
update toolbar opacity
Merge branch 'dev' of github.com:sdc-alibaba/qnui into dev