Queue job should use default Job traits

[Gummibeer]

By default a Laravel Job uses Dispatchable, InteractsWithQueue, Queueable, SerializesModels.
The queue job provided by the package should use all of them.

• Dispatchable: will allow to let the job dispatch itself
• InteractsWithQueue: is optional sugar on the cake
• Queueable: will allow to define the queue and connection of the job
• SerializesModels: should be required because the job accepts and handles an eloquent model

[freekmurze]

Feel free to PR improvements around this. It might also be nice to let the user, in the config file, specify the job class to be used

[Gummibeer]

Because the user has to self dispatch the job I don't see any need for a config value. There isn't any controller or something dispatching the job inside the package.
The only useful thing in config would be to define the queue and connection.
Will open a PR.