Added long polling test.
switch from string to integer

should be integer. String breaks and throws error
Merge pull request #73 from iron-io/string_fix

switch from string to integer
Minor test updates.
Merge remote-tracking branch 'origin/master'
Added wait and delete params to docs.
proactively catch empty queue names

otherwise you get a bizarre error "undefined method `encoding' for nil:NilClass"
Merge pull request #74 from seamusabshere/patch-1

proactively catch empty queue names
merge