Guard against setting the DOM range in an empty text node in IE
Guard against setting the DOM range in an empty text node in IE

IE seems to accumulate a few empty text nodes at the end of the element for some unknown reason

ChenMichael/trix,urossmolnik/trix,urossmolnik/trix,GabiGrin/trix,basecamp/trix,urossmolnik/trix,GabiGrin/trix,ChenMichael/trix,basecamp/trix,basecamp/trix,GabiGrin/trix,basecamp/trix,ChenMichael/trix