#17370 Bugfix in admin_save_slider_image

git-svn-id: https://svn.eionet.europa.eu/repositories/Naaya/trunk/eggs/naaya.chm@20435 a0171fae-0946-0410-966d-b1775066cd26
Released 3.0.25 new version 3.0.26

git-svn-id: https://svn.eionet.europa.eu/repositories/Naaya/trunk/eggs/naaya.chm@20436 a0171fae-0946-0410-966d-b1775066cd26