use .cache as caching for vendor packages for installation
use .cache as caching for vendor packages for installation

Signed-off-by: Patrick Jahns <64b2b6d12bfe4baae7dad3d018f8cbf6b0e7a044@patrickjahns.de>

phil-davis/core,owncloud/core,owncloud/core,owncloud/core,owncloud/core,owncloud/core