Minor fix to work properly with the newest version of the Redis library and use pipelined instead of the internal set_with_expiry, as that relies on multi command being implemented.
Minor fix to work properly with the newest version of the Redis library and use pipelined instead of the internal set_with_expiry, as that relies on multi command being implemented.

toldani/redis-session-store,zBMNForks/redis-session-store,roidrage/redis-session-store