Fixed white space removal issue with the DomParser and empty tags.
Fixed white space removal issue with the DomParser and empty tags.

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