add new list_slideshows and list_slideshow_items
some improvments for slideshow lists
Merge branch 'master' of github.com:sourcefabric/Newscoop into slideshows
rename private to protected
rename private to protected
fix topics and some slideshows
Merge branch 'master' of github.com:sourcefabric/Newscoop into slideshows
Merge pull request #561 from ahilles107/slideshows

Slideshows + Topics