Merge pull request #15 from seuros/master

Use case/when
Update README.md
Update README.md
Merge pull request #16 from seuros/master

Setting the adapter load the required gem.
Add justification
Merge branch 'master' of github.com:rails/activejob
Pull in rake

For those that don't have it globally...
Merge pull request #17 from mperham/patch-1

Pull in rake
Whitelist legal job parameter types
Use bundle gem tasks
Update Gemfile.lock
:scissors:
Fix typos in readme.
Merge pull request #21 from DouweM/patch-1

Fix typos in readme.
Merge pull request #18 from mperham/param_whitelist

Whitelist legal job parameter types
Have Sidekiq adapter take queue_name into account.
Merge pull request #22 from DouweM/patch-1

Have Sidekiq adapter take queue_name into account.
Styling
Make sure Bignum can be serialized
Refactor Resque adapter to be more consistent with others