update bootstrap to 3.1.1
Merge branch 'master' of github.com:IbpTeam/demo-rio
rename dir for frontend
small fix for frontend;modify index.html and package.json.
add qrcode.
add function configuration in main.js
fix qrcode.
fix dropdown css in style.css
fix popup menu in folder_view.
show table in folder_view
update jquery, add jquery.ui
fix frontend css
add slidebar for folder_view
rm file-explorer under demo-rio
mv unused files under frontend-dev to backup
small fix for db-manager
add openmethod