Remove commented out code for capturing screen. Also in presentation mode hide menubar and dock only when on the primary screen. 
Remove commented out code for capturing screen. Also in presentation mode hide menubar and dock only when on the primary screen. 

git-svn-id: 765db44a9620ed55f4f8addfd3c14fe8cd57f6bb@1681 0fceea05-a30d-0410-8a8b-80ef821fb0a1

nanoant/Skim,nanoant/Skim,nanoant/Skim,nanoant/Skim,nanoant/Skim