Redis Unixsocket: Support setting virtual host in query
Redis Unixsocket: Support setting virtual host in query

Example url with virtual host set:

    redis+socket:///tmp/redis.sock?virtual_host=3

Related to Issue #238

iris-edu-int/kombu,mverrilli/kombu,Elastica/kombu,mverrilli/kombu,andresriancho/kombu,bmbouter/kombu,bmbouter/kombu,iris-edu-int/kombu,urbn/kombu,xujun10110/kombu,ZoranPavlovic/kombu,andresriancho/kombu,alex/kombu,jindongh/kombu,numb3r3/kombu,jindongh/kombu,tkanemoto/kombu,cce/kombu,tkanemoto/kombu,celery/kombu,ZoranPavlovic/kombu,Elastica/kombu,xujun10110/kombu,alex/kombu,daevaorn/kombu,cce/kombu,numb3r3/kombu,daevaorn/kombu