Merge pull request lexik#73 from 9orky/feature/onJwtEncodedEvent

add JWTEncodedEvent so JWT string is available after its creation

Merge pull request lexik#71 from adetwiler/master

Fixing a missing use statement for Reference

Merge pull request lexik#70 from lexik/deprecated-fix

fixed deprecated errors for symfony 2.6 plus

Merge pull request lexik#63 from JJK801/improvement

Improve JWTProvider

forced algorythm in the encoder service

updated namshi/jose dependency requirement

Merge pull request lexik#28 from EmmanuelVella/authentication-failure

Improve response and dispatch event in AuthenticationFailureHandler

added encoder service customization documentation

updated documentation

Merge pull request lexik#15 from gfreeau/master

Added JWT Creator service