Assign reference to the Job instance

This way, we can call `decorated.job.invalidate()` or `.delete()`.
Merge pull request #17 from martinblech/patch-1

Assign reference to the Job instance
Fix docs typo
Allow overriding options for refresh_cache.apply_async.

This change lets you override the celery routing for individual
cacheback-decorated functions.
Ignore coverage files
Bump version to 0.6
Always include class_path when generating cache key
Restructure test for cache clash issue
Bump version to 0.7
Correct typo in example
added cache tagging to the cache-back app
update requirements
[#66018288] Add a settings option, CACHEBACK_VERIFY_RAISE_ERROR, that
when set to false logs an error in setting a cache item item instead of
raising an error
[#66018288] fix oops