Reduce dependencies of source files in framework. PDF classes and categories could now be safely left out.
Reduce dependencies of source files in framework. PDF classes and categories could now be safely left out.

git-svn-id: 765db44a9620ed55f4f8addfd3c14fe8cd57f6bb@4221 0fceea05-a30d-0410-8a8b-80ef821fb0a1

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