LinGui: improvements to queue window

Add x264 preset/tune/profile/level.  LinGui has been missing this.
Reformat audio and subtitle list.
Don't show "Turbo" when not encoding 2 pass ABR.
Don't show "Filters" line if there are no filters.

git-svn-id: svn://svn.handbrake.fr/HandBrake/trunk@6061 b64f7644-9d1e-0410-96f1-a4d463321fa5