[ENH]Add info about the new pref image_responsive_class in uprade wizard. Thanks jonnyb
[ENH]Add info about the new pref image_responsive_class in uprade wizard. Thanks jonnyb

git-svn-id: a7fabbc6a7c54ea5c67cbd16bd322330fd10cc35@59377 b456876b-0849-0410-b77d-98878d47e9d5

tikiorg/tiki,oregional/tiki,oregional/tiki,oregional/tiki,tikiorg/tiki,oregional/tiki,tikiorg/tiki,tikiorg/tiki