xF1 Add-on Social Network Authentication (Twitter, Google, VK.com) 1.0

Create a database backup before installation!

Features:
1. Registration of a new account via Twitter, Google, VK.com
2. Association of an old account with Twitter, Google, VK.com

Notes:

• The addon requires TMS.
• If you have Twitter Auth or VK Auth installed, don't uninstall them. Addon will do it itself without data loss.
• Uninstall of the addon will leave twitter, google and vk users without password.

Redirect uri for Google:
Redirect uri for Twitter and VK:
GitHub: https://github.com/guiltar/Social

Thanks to CyberAP for styling!
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