Fixed IE 9 createEvent unit test issue.
Fixed IE 9 createEvent unit test issue.

sjbufton/tinymce,pmpl-5/tinymce,endjin/tinymce,tinymce/tinymce,jtark/tinymce,Razzwan/tinymce,tinymce/tinymce,shilpi230/tinymce,rxl194/tinymce,gabixdev/tinymce,support-dot-com/tinymce,mplank/tinymce,adaptiffdesigns/tinymce,FernCreek/tinymce,leofeyer/tinymce,FernCreek/tinymce,MediehusetTek/tinymce,rxl194/tinymce,bsuh/tinymce,nbcp/tinymce,fillabs/TinySpecMCE,tinymce/tinymce,sachgits/tinymce,Kindling/tinymce,ice8lue/tinymce,ikuchmin/tinymce,widgetfactory/tinymce,ChristophKaser/tinymce,bsuh/tinymce,nikolas/tinymce,mplank/tinymce,M4R7iNP/tinymce,gencer/tinymce,fhchina/tinymce,kencheung/tinymce,danielpunkass/tinymce,fashionsun/tinymce,danchr/tinymce,ice8lue/tinymce,gencer/tinymce,cclaerhout/tinymce,toxalot/tinymce,gabixdev/tinymce,howanghk/tinymce,blakewallan/tinymce,jtark/tinymce,danielpunkass/tinymce,danielpunkass/tinymce,simachewh/tinymce,howanghk/tinymce,aduth/tinymce,support-dot-com/tinymce,henrythewasp/tinymce,ikuchmin/tinymce,dziemian007/tinymce,danchr/tinymce,Razzwan/tinymce,widgetfactory/tinymce,enfold/tinymce,nikolas/tinymce,collective/tinymce,1099511627776/tinymce,fashionsun/tinymce,ChristophKaser/tinymce,M4R7iNP/tinymce,nbcp/tinymce,dziemian007/tinymce,Shopify/tinymce,FernCreek/tinymce,leofeyer/tinymce,enfold/tinymce,jashua212/tinymce,henrythewasp/tinymce,Zimbra/tinymce,TeamupCom/tinymce,adaptiffdesigns/tinymce,MediehusetTek/tinymce,rednose-public/tinymce,Kindling/tinymce,rbecheras/tinymce,simachewh/tinymce,ETSI-CTI/TinySpecMCE,kencheung/tinymce,rednose-public/tinymce,rbecheras/tinymce,TeamupCom/tinymce,VioletLife/tinymce,ETSI-CTI/TinySpecMCE,fhchina/tinymce,jashua212/tinymce,toxalot/tinymce,aduth/tinymce,Zimbra/tinymce,sachgits/tinymce,cclaerhout/tinymce,blakewallan/tinymce,endjin/tinymce,1099511627776/tinymce,VioletLife/tinymce,shilpi230/tinymce,sjbufton/tinymce,pmpl-5/tinymce,collective/tinymce,fillabs/TinySpecMCE