cnf: kaltura_category_kuser.status should be category_kuser_status

git-svn-id: svn+ssh://kelev.kaltura.com/usr/local/kalsource/backend/server/tags/gemini_2012_10_22@92796 6b8eccd3-e8c5-4e7d-8186-e12b5326b719
qnd: validate file input format

git-svn-id: svn+ssh://kelev.kaltura.com/usr/local/kalsource/backend/server/tags/gemini_2012_10_22@92797 6b8eccd3-e8c5-4e7d-8186-e12b5326b719
qnd: validate input file format

git-svn-id: svn+ssh://kelev.kaltura.com/usr/local/kalsource/backend/server/tags/gemini_2012_10_22@92806 6b8eccd3-e8c5-4e7d-8186-e12b5326b719