fixing #3657 NEW config setting

; By default Piwik runs OPTIMIZE TABLE SQL queries to free spaces after deleting some data.
; If your Piwik tracks millions of pages, the OPTIMIZE TABLE queries might run for hours (seen in "SHOW FULL PROCESSLIST \g")
; so you can disable these special queries here:
enable_sql_optimize_queries = 1


git-svn-id: http://dev.piwik.org/svn/trunk@7738 59fd770c-687e-43c8-a1e3-f5a4ff64c105