CLOUDSTACK-9772: Perform a HEAD request to check file size from a URL (#1934)
CLOUDSTACK-9772: Perform a HEAD request to check file size from a URL (#1934)

For template urls, perform a HEAD request to check file size from a URL.

Signed-off-by: Marc-Aurèle Brothier <6b0d31c0d563223024da45691584643ac78c96e8@brothier.org>
wido/cloudstack,wido/cloudstack,jcshen007/cloudstack,wido/cloudstack,GabrielBrascher/cloudstack,GabrielBrascher/cloudstack,DaanHoogland/cloudstack,jcshen007/cloudstack,jcshen007/cloudstack,DaanHoogland/cloudstack,GabrielBrascher/cloudstack,wido/cloudstack,wido/cloudstack,jcshen007/cloudstack,DaanHoogland/cloudstack,jcshen007/cloudstack,GabrielBrascher/cloudstack,jcshen007/cloudstack,DaanHoogland/cloudstack,GabrielBrascher/cloudstack,wido/cloudstack,DaanHoogland/cloudstack,jcshen007/cloudstack,DaanHoogland/cloudstack,GabrielBrascher/cloudstack,DaanHoogland/cloudstack,wido/cloudstack,GabrielBrascher/cloudstack