Fixup lsearchd config slightly

- Copy all *.dblist files to searchidx, not just all.dblist
- Use /a/search/conf for all dblist files, not /usr/local/apache/common

Change-Id: Iaf34b6c2f13fd21ab5f9788c307f9fec7c13ce06
Merge "Fixup lsearchd config slightly" into production