Fix EZP-23170: swapping node with sub items with non-container node.
Fix travis timezone declaration issues

Same as https://github.com/ezsystems/ezpublish-kernel/pull/944
Fix travis timezone declaration issues
Fix indentation
Merge pull request #1046 from guillaumelecerf/travis_workaround

Fix travis timezone declaration issues
Merge pull request #1032 from joaoinacio/EZP-23170_swapnode_container_subitems

Fix EZP-23170: swapping node with sub items with non-container node.
test