FSScrollPane doesn't respect the view position

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FSScrollPane seems to be using the vertical scroll bar to set the view position 
but it would be better to use the JScrollPane directly to do this (especially 
for PAGE_START). Not only will this mean scrolling will be smoother, but it 
also means that there will be less cases where the PAGE_START command is simply 
ignored, e.g. after refreshing the Document in a contained XHTML Panel.

Original issue reported on code.google.com by Sam.Hall...@gmail.com on 17 Mar 2013 at 3:58