Fixed up Channel.queue_declare().
Fixed up Channel.queue_declare().

1.  Removed Exception raising that would not have worked if needed.
2.  Fixed docstring to document return type

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