[FIX] smarty variable not initialized in the installer

git-svn-id: file:///var/local/code.tiki.org/tikisvn/trunk@52701 b456876b-0849-0410-b77d-98878d47e9d5
[MOD] iconset showcase

git-svn-id: file:///var/local/code.tiki.org/tikisvn/trunk@52702 b456876b-0849-0410-b77d-98878d47e9d5