Update Varnish xkey module
We would like to apply soft purge for our customer hosted on Hypernode, but installed version of the xkey module does not support purging by multiple tags. Newer version supports space separated tags in softpurge() call.
Please upgrade the module.
Original xkey feature request https://hypernode.uservoice.com/forums/242854-hypernode-features/suggestions/41166595-support-varnish-xkey-extension
