Merge pull request #11 from cba85/master

fix undefined $_SERVER['HTTP_USER_AGENT']

Merge pull request #10 from dzentota/master

Fixed Type juggling, reworked randomString() to generate cryptographi…

Merge pull request #6 from rogervila/native-cookie-provider

NativeCookieProvider

Update README.md

Bump min PHP version

Bug fix

Update readme