added reference widget
added reference widget

davidfang/app,cornernote/app,janatzend/app,myorb/m2-parser-system,myorb/m2-parser-system,myorb/pmyapp,cornernote/app,myorb/m2-parser-system,janatzend/app,davidfang/app,myorb/bookapp,Silver90/app,Silver90/app,janatzend/app,myorb/pmyapp,phundament/app,philippfrenzel/app,philippfrenzel/app,cornernote/app,myorb/pmyapp,myorb/m2-parser-system,myorb/bookapp,Silver90/app,motin/giic-gtc-hybrid-template-demo,myorb/bookapp,philippfrenzel/app,davidfang/app,cornernote/app,phundament/app,motin/giic-gtc-hybrid-template-demo,myorb/pmyapp,phundament/app