Fixed EZP-19161: Remove redundant indexes/keys
CS: fixed some issues not reported yet by ezcs standard
Fix EZP-20289 Symfony CSRF protection not integrated with legacy

This is the Symfony side of things injecting csrf settings if csrf is enabled
into api added in https://github.com/ezsystems/ezpublish/pull/552
Permission criteria: Support role limitations with no policies

This commit reverts 44195a1b79e8bbc9cd4db9624db9226af8953b37 :Permission critieria: Skip on empty limitation list
EZP-20238 - Replace deprecated render Twig tag by the corresponding function
Fixed EZP-20084: ezwebin : front end siteaccesses don't share same session
Merge pull request #212 from patrickallaert/EZP-20084

EZP-20084: ezwebin : front end siteaccesses don't share same session
CS: if conditions over several lines
Fixed EZP-20084: ezwebin : front end siteaccesses don't share same session

Fixing testsuite
Merge pull request #211 from ezsystems/legacy_csrf_inject

Fix EZP-20289 Symfony CSRF protection not integrated with legacy
CS: fixed double space
CS: fixed spacing issues
Implemented EZP-20389 - Implement old .tpl engine as a real Symfony template engine
Merge pull request #213 from lolautruche/eztemplate_symfony_engine

EZP-20389 - Implement old .tpl engine as a real Symfony template engine
Fixed EZP-20287 - eZP 5.0 Kernel errors falls back to eZ Demo
Merge pull request #214 from ezsystems/error_fallback

Fixed EZP-20287 - eZP 5.0 Kernel errors falls back to eZ Demo
Fixed EZP-20221 - Socket information for Database Connection is not propagated to legacy
Fixed: typos
Fixed EZP-20420 - Small CS issue in Repository/Values/Content/Location class
Fix some @package doxygen issues