Fixed issue when inserting space before contents in IE.
Fixed issue when inserting space before contents in IE.

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