Merge branch '3.8'

Conflicts:
	.gitignore
	lib/Alchemy/Phrasea/Core/Version.php
	lib/classes/databox.php
	lib/classes/task/abstract.php
	lib/classes/task/manager.php
	lib/classes/task/period/subdef.php
	lib/classes/task/period/writemeta.php
	lib/conf.d/bases_structure.xml
	templates/web/admin/tasks/list.html.twig

config/configuration.sample.yml

@@ -202,3 +202,29 @@ api_cors:
 session:
     idle: 0
     lifetime: 604800 # 1 week
+crossdomain:
+    site-control: 'master-only'
+    allow-access-from:
+        -
+            domain: '*.example.com'
+            secure: 'false'
+        -
+            domain: 'www.example.com'
+            secure: 'true'
+            to-ports: '507,516-523'
+    allow-access-from-identity:
+        -
+            fingerprint-algorithm: 'sha-1'
+            fingerprint: '01:23:45:67:89:ab:cd:ef:01:23:45:67:89:ab:cd:ef:01:23:45:67'
+        -
+            fingerprint-algorithm: 'sha256'
+            fingerprint: '01:23:45:67:89:ab:cd:ef:01:23:45:67:89:ab:cd:ef:01:23:45:67'
+    allow-http-request-headers-from:
+        -
+            domain: '*.bar.com'
+            secure: 'true'
+            headers: 'SOAPAction, X-Foo*'
+        -
+            domain: 'foo.example.com'
+            secure: 'false'
+            headers: 'Authorization,X-Foo*'