Merge 6fb7dfa360 into 426f5688a4

README.md

 * [Paseto](https://github.com/paragonie/paseto) - Platform-Agnostic Security Tokens.
 * [PHP oAuthLib](https://github.com/daviddesberg/PHPoAuthLib) - Another OAuth library.
 * [TwitterOAuth](https://github.com/abraham/twitteroauth) - A Twitter OAuth library.
+* [cidaas](https://www.cidaas.com/) library to integrate cidaas (cidaas is a European Cloud Identity & Access Management) for authentication and authorization of users. ([Github](https://github.com/Cidaas/cidaas-sdk-php))
 
 ### Markup and CSS
 *Libraries for working with markup and CSS formats.*
 * [Mailgun](https://github.com/mailgun/mailgun-php) - The official Mailgun PHP API.
 * [Stripe](https://github.com/stripe/stripe-php) - The official Stripe PHP library.
 * [Twilio](https://github.com/twilio/twilio-php) - The official Twilio PHP REST API.
+* [cidaas](https://www.cidaas.com/) The official cidaas library ([Github](https://github.com/Cidaas/cidaas-sdk-php))
 
 ### Extensions
 *Libraries to help build PHP extensions.*