[FIX] smarty: Correct typo - not sure how to test, presumably never has been?

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/12.x@47964 b456876b-0849-0410-b77d-98878d47e9d5
[FIX] Warning caused in elasticsearch by empty dates

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/12.x@47965 b456876b-0849-0410-b77d-98878d47e9d5
[ENH] smarty: New pref to allow addition of extra dirs to be used for custom icons etc

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/12.x@47966 b456876b-0849-0410-b77d-98878d47e9d5