Fix api cookies remover

Conflicts:
	lib/Alchemy/Phrasea/Application.php
Merge pull request #975 from romainneutron/api-cookies

[3.8] Fix api cookies remover
Merge branch '3.8'

Conflicts:
	lib/Alchemy/Phrasea/Application.php
	tests/Alchemy/Tests/Phrasea/Core/Event/Subscriber/CookiesDisablerSubscriberTest.php
Fix CS
Cleanup API
Fix API environment
Bump to version 3.9.0-alpha.13
Fix unit tests