Added queue delete test back in.
Apparently test-unit doesn't like the name test_delete or something.
(cherry-picked from 9c3e8f8)
#45: fixes bugs; adds a lot of FIXMEs and TODO
#45: updates documentation
#45: removes client.queues.* calls from documentation
#45: removes info call on Queue object init for Client#queue(name)
#45: updates README
new gem design; updates documentation; get rid of "default" queue and related functionality
clears tests; removes old ironmq.messages syntax
adds tests for peek, touch, delete, etc.
#45: updates documentation; adds copyright at the end; bumps version
#45: updates documentation
#45: adds new and updates existing tests
adds spaces processing in queue names
#45: fixes push_queue? method
#45: updates code
updates deletion test