KNL-1274 Make sure SMB_SEARCH index is created on new installations.

SMB_SEARCH was added to existing installations through upgrade scripts but on a new installation the index wasn't present.

git-svn-id: https://source.sakaiproject.org/svn/kernel/trunk@310460 66ffb92e-73f9-0310-93c1-f5514f145a0a