Update all existing copyright headers under integration.
Add copyright headers to those files that didn't have them.
Remove extraneous material from file comments.
Update and add a few comments.
Merge pull request #1649 from ximenesuk/update-test-headers

Update copyright and comments in Python integration tests
Close import service when import as.
Merge pull request #1655 from jburel/close-import-as

Close import service when import as.
Do not import as in private group.
Do not rely on data displayed in tree.
Do not allow logged in user to import in other user's data.

Possible even if the context did not allow to do so.
Mark three further further failing tests. See #11539
Add test cases
Remove string formatting
Revert "Add test cases"

This reverts commit 78e55265fac0f706351e5a44f362f2e934067be7.
Merge pull request #1661 from jburel/import-private

Import private
Merge pull request #1678 from ximenesuk/xfail-more-tests

Mark three further further failing tests.
Merge pull request #1682 from knabar/fix-11588-config-get-4

Fix #11588 Settings containing Python string formatting are not displayed correctly (for dev_4_4)