Update the news file to reflect the current state of x265

git-svn-id: svn://svn.handbrake.fr/HandBrake/trunk@6554 b64f7644-9d1e-0410-96f1-a4d463321fa5
WinGui: It seems some systems don't allow access to the System management info without admin rights. So the app now tries, and fails gracefully rather than crashing.

git-svn-id: svn://svn.handbrake.fr/HandBrake/trunk@6556 b64f7644-9d1e-0410-96f1-a4d463321fa5
WinGui: Remove duplicate copies of docs from the windows folder.

git-svn-id: svn://svn.handbrake.fr/HandBrake/trunk@6559 b64f7644-9d1e-0410-96f1-a4d463321fa5