Ability to retrieve data associated with job for worker process
Correct types for returning values of num,total,etc. status method instead of get to retrieve job status, now get returns any field to you in string format. Updated readme
A correct way to override default expiration time when you set it as worker
Bugfixes and tests for statuses and progress tracking
Fix bug with nil status
Fix bug if we're trying to write array as param
Merge pull request #6 from andrusha/master

Correct types of returning values for progress tracking and statuses,  tests for all of that, ability to worker to read saved data, expiration bugfix.