change audio accept file
Merge branch 'master' into yangtiansheng
update testPaper.js
Merge branch 'feivorid'
update testPaper.js
add edit audio
Merge branch 'master' of https://github.com/xdfcn/items
update app.sj and add xdf.js
update app.js and xdf.js
update layout.ejs
158 160
update app.js xdf.js main.js
Merge branch 'nldjyhl'
Merge branch 'henryleu'
add ModelTestStructrue.js
Merge branch 'feivorid'
validate audio  file and img file
Merge branch 'master' of https://github.com/xdfcn/items
delete fs of app.js file
delete fomideble model