[#2033] Slight language tweak
Update cookbook/doctrine/registration_form.rst

Validate Registration::$user fields, not just it's Type.
Merge pull request #2039 from iamdto/parameters-example

Fixed example parameters with mixed INI and Yaml
Merge pull request #2037 from WouterJ/patch-26

Added full PDO sessionstorage configuration
Merge pull request #2008 from catchamonkey/typo_fixes

Typo, grammar and GitHub UI description changes
Added full configuration in order formats aswell
Merge pull request #2044 from WouterJ/patch-29

Added full configuration in order formats aswell
Fixed method chaining indentation
Fixed minor code examples issues
How to add a new package and update .lock file
Fix
added CVE references where applicable
Merge pull request #2047 from fabpot/security

added CVE references where applicable in the Security docs
Merge remote-tracking branch 'origin/2.0' into 2.0
Merge pull request #2046 from gajdaw/update-2.1

How to add a new package and update .lock file
[#2046] Minor syntax and language tweaks
Merge branch '2.0' into 2.1
Merge pull request #2045 from WouterJ/minor_fixes

Fixed minor code examples issues
Remove text relating to tests
fixed namespace in form.type_extension code example