Fix #1573 : Propose rights reset prior apply template

Conflicts:
	templates/web/admin/index.html.twig
Fix #1571 : Cleanup user settings, fix user settings calls
Fix events manager eroneous notification availability detection
Bump to 3.8.1 alpha 3
Merge pull request #768 from romainneutron/fix-1571

[3.8] Fix #1571 : Cleanup user settings, fix user settings calls
Merge pull request #773 from romainneutron/fix-1573

[3.8] Fix #1573 : Propose rights reset prior apply template
Remove demo file
Insight recommendations
Merge pull request #782 from romainneutron/insight-recommendation

[3.8] Insight recommendations
Merge branch '3.8'

Conflicts:
	lib/Alchemy/Phrasea/Controller/Admin/TaskManager.php
	lib/Alchemy/Phrasea/Controller/Root/Account.php
	lib/Alchemy/Phrasea/Core/Version.php
	lib/classes/User/Adapter.php
	lib/classes/eventsmanager/broker.php
	lib/classes/eventsmanager/notify/autoregister.php
	lib/classes/eventsmanager/notify/order.php
	lib/classes/eventsmanager/notify/register.php
	lib/classes/eventsmanager/notify/uploadquarantine.php
	lib/classes/eventsmanager/notify/validationdone.php
	templates/web/admin/index.html.twig
Fix latest merge
Fix unit tests
Remove http_request