New features

This is a special release to comply with the new General Data Protection Regulation

GDPR

• GDPR: Unbundled consent on user registration #3483
• GDPR: Right to be Forgotten #3315
• GDPR: Newsletter checkbox unchecked by default \3316
• GDPR: Track TOS page version in Organization #3491
• GDPR: User must review TOS when updated #3494
• GDPR: Add Right of data portability. #3489
• GDPR: Opt-in for all the users with newsletters #3492

Full Changelog: https://github.com/decidim/decidim/blob/0.13-stable/CHANGELOG.md