Update sidekiq dependency in gemspec
to accomodate versions 2.13.1 & greater
Test that scheduled unique jobs correctly move from the queue to work.
Use the job id as the lock value, fix test to work with that assumption
Make sure we're running celluloid so it'll work as expected.
Merge pull request #17 from bwthomas/update_sidekiq_dependency

Update sidekiq dependency in gemspec
Merge pull request #18 from Sutto/scheduled-unique-fixes

Scheduled unique fixes
Proper constraint for Sidekiq version
Merge branch 'master' into tests/broken_reschedule
Make test correct