fix spelling error
Fix reference to wrong constant (Resque::Metrics, not Resque::Metric)
Merge pull request #3 from technicalpickles/fix-callback-example

Fix Forking Metrics example
Merge pull request #5 from technicalpickles/use-boxen-redis-if-present

Use boxen-provided redis if available
Merge pull request #2 from aschepis/patch-1

fix spelling error
First stab at job failure metrics
Enqueue failure jobs during tests
rename test_should_call_callbacks to test_should_call_job_complete_callbacks, so we can test other callbacks
Add failing case for calling job failure callbacks
Add failed_job count accessors
Make test more readable by using hash instead of array
Remove reference to non-existent variable cuz of copya-pasta
raise, not fail
Stop skipping callback test. Remove unused 'time' arguments
Copy more readable-style from other test
Update README with additions
Refactor thing tracking metrics into a backend pattern, so we can add more later
Spike statsd backend
Make sure the job/queue metric is optional, for totals
Make _job pattern optional