[ENH] Automatically open the circulate dialog after adding a must-read item

git-svn-id: file:///var/local/code.tiki.org/tikisvn/trunk@52097 b456876b-0849-0410-b77d-98878d47e9d5
[ENH] UI adjustments for circulate, fix error when adding nothing

git-svn-id: file:///var/local/code.tiki.org/tikisvn/trunk@52098 b456876b-0849-0410-b77d-98878d47e9d5