allow to use slashes in vsphere network/folders cpi properties

Signed-off-by: dmitriy kalinin <cppforlife@pivotallabs.com>
formatting

Signed-off-by: dmitriy kalinin <cppforlife@pivotallabs.com>
fixed namespace for ArtifactsDownloader

Signed-off-by: dmitriy kalinin <cppforlife@pivotallabs.com>
formatting

Signed-off-by: Dmitriy Kalinin <dmitriy@pivotallabs.com>
moved setting BAT_INFRA.. to bat runner

Signed-off-by: Dmitriy Kalinin <dmitriy@pivotallabs.com>