Deleted deprecated(old) implementations of JSON Web Encryption.
[PLINK-538] - Use default EntityManager if no @PicketLink-qualified producer is available.
Merge pull request #369 from pedroigor/master

[PLINK-538] - Use default EntityManager if no @PicketLink-qualified producer is available.
Merge pull request #368 from girirajsharma/master

Deleted deprecated(old) implementations of JSON Web Encryption.
First step
Formatting change
Formatting change #2
Authorizer for levels
Authorization of levels
Context management
Asynchronous check of the contexts
Formatting change
Another formatting change
Fixed bug of logging out
Corrected error with reauthentication