When Downloader/CleanCache is set, only delete the files downloaded during the DownloadManager's lifetime
When Downloader/CleanCache is set, only delete the files downloaded during the DownloadManager's lifetime

git-svn-id: ab66a9de07fa9d47c5829c82992f5279466c775f@2398 63c20433-aa62-49bd-875c-5a186b69a8fb

drakeguan/gpac,vladimir-kazakov/gpac,rauf/gpac,gpac/gpac,emmanouil/gpac,rbouqueau/gpac,ARSekkat/gpac,vladimir-kazakov/gpac,nguyen-viet-thanh-trung/gpac,vladimir-kazakov/gpac,rbouqueau/gpac,RodolpheFouquet/gpac,rbouqueau/gpac_brew_travis,epam/gpac,porcelijn/gpac,gpac/gpac,gpac/gpac,drakeguan/gpac,emmanouil/gpac,DmitrySigaev/gpac,Bevara/Access-open,gpac/gpac,emmanouil/gpac,gpac/gpac,aymanelyaagoubi/gpac,psteinb/gpac,rbouqueau/gpac,nguyen-viet-thanh-trung/gpac,aymanelyaagoubi/gpac,drakeguan/gpac,epam/gpac,Bevara/Access-open,epam/gpac,drakeguan/gpac,ARSekkat/gpac,porcelijn/gpac,rbouqueau/gpac,psteinb/gpac,porcelijn/gpac,DmitrySigaev/gpac,gpac/gpac,drakeguan/gpac,rauf/gpac,rauf/gpac,aymanelyaagoubi/gpac,DmitrySigaev/gpac,RodolpheFouquet/gpac,rbouqueau/gpac_brew_travis,epam/gpac,nguyen-viet-thanh-trung/gpac,RodolpheFouquet/gpac,RodolpheFouquet/gpac,rauf/gpac,aymanelyaagoubi/gpac,rauf/gpac,Bevara/Access-open,DmitrySigaev/gpac,ARSekkat/gpac,rauf/gpac,porcelijn/gpac,vladimir-kazakov/gpac,nguyen-viet-thanh-trung/gpac,vladimir-kazakov/gpac,gpac/gpac,rbouqueau/gpac,DmitrySigaev/gpac,rbouqueau/gpac_brew_travis,rbouqueau/gpac_brew_travis,rbouqueau/gpac,Bevara/Access-open,ARSekkat/gpac,psteinb/gpac,RodolpheFouquet/gpac,DmitrySigaev/gpac,epam/gpac,rbouqueau/gpac_brew_travis,rbouqueau/gpac_brew_travis,nguyen-viet-thanh-trung/gpac,drakeguan/gpac,ARSekkat/gpac,canatella/gpac,canatella/gpac,gpac/gpac,canatella/gpac,canatella/gpac,RodolpheFouquet/gpac,rbouqueau/gpac,aymanelyaagoubi/gpac,emmanouil/gpac,psteinb/gpac,epam/gpac,canatella/gpac,psteinb/gpac,porcelijn/gpac,ARSekkat/gpac,emmanouil/gpac,Bevara/Access-open,rbouqueau/gpac,psteinb/gpac,nguyen-viet-thanh-trung/gpac,emmanouil/gpac,Bevara/Access-open,vladimir-kazakov/gpac,porcelijn/gpac,aymanelyaagoubi/gpac,canatella/gpac,canatella/gpac