Grow cursor area for resizable active annotation. Fix resizing annotations when dragging past minimum size.
Grow cursor area for resizable active annotation. Fix resizing annotations when dragging past minimum size.

git-svn-id: 765db44a9620ed55f4f8addfd3c14fe8cd57f6bb@3129 0fceea05-a30d-0410-8a8b-80ef821fb0a1

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