Update jsonwebtoken

[aklinkert]

Installing the package throws following warning:

$ npm install --save sails-hook-jwt-auth
npm WARN deprecated jsonwebtoken@4.2.2: Critical vulnerability fix in v5.0.0. See https://auth0.com/blog/2015/03/31/critical-vulnerabilities-in-json-web-token-libraries/
npm WARN deprecated jws@2.0.0: Security update: Versions below 3.0.0 are deprecated.

[saviogl]

@apinnecke I've been swamped with work, and could not keep track with the changes regarding this repo, feel free to fork it, and send a PR updating jsonwebtoken version.

I'll try to find some time this week to do that, and also add unit tests to cover at least these routes:

'post /login' : 'AuthController.login',
'post /signup' : 'AuthController.signup',
'get /activate/:token' : 'AuthController.activate'

[sathish2k]

requireaccountactivation error