so now, any report that "contain" today, current week/month or date range containing today, will be processed every N seconds, N being the timeout set in General Settings
however if a report is requested for 'current month' eg., and archiving via browser is disabled, we will select 'any current month' archive that was processed today. So we might display out of date reports, ie. the oldest behavior, if archiving is disabled and crontab doesn't run as often as the timeout set in GEneral settings

git-svn-id: http://dev.piwik.org/svn/trunk@4341 59fd770c-687e-43c8-a1e3-f5a4ff64c105