[ENH] Offer a link for admin, to rebuild index on error message "No index available".   Ref: http://dev.tiki.org/item4951
[ENH] Offer a link for admin, to rebuild index on error message "No index available".   Ref: http://dev.tiki.org/item4951

git-svn-id: fe65cb8b726aa1bab0c239f321eb4f822d15ce08@48829 b456876b-0849-0410-b77d-98878d47e9d5

tikiorg/tiki,oregional/tiki,changi67/tiki,tikiorg/tiki,oregional/tiki,changi67/tiki,changi67/tiki,tikiorg/tiki,changi67/tiki,tikiorg/tiki,oregional/tiki,oregional/tiki,changi67/tiki