2.0.0

• Add support for Content-Security-Policy Level 2 directives
• Add support for Content-Security-Policy Level 2 signatures (nonce and message digest)
• Add browser adaptive directives - do not send directives not supported by browser - via browser_adaptive parameter
• Allow report-uri to be defined as a scalar
• Deprecate encrypted cookie support du to high coupling to mcrypt deprecated extension
• Drop backward-compatibility with first deprecated CSP configuration