Check if webGroup exists rather than checking the pref, as the pref can change (though it shouldn't). 
Check if webGroup exists rather than checking the pref, as the pref can change (though it shouldn't). 

git-svn-id: cb3fc60f0f557b927b8032d8a94e869b6f9f230b@776 0fceea05-a30d-0410-8a8b-80ef821fb0a1

camillobruni/skim,camillobruni/skim,jasongrout/skim,camillobruni/skim,jasongrout/skim,camillobruni/skim