ezsystems/ezpublish-kernel — pull request #279 by pspanja (2013-03-28 19:04:18+00:00)
Title: Fix EZP-20540 Moving a folder to its subtree doesnt raise an exception

This PR fixes issue https://jira.ez.no/browse/EZP-20540

```moveSubtree``` method was never specified to react on moving a location into the subtree.
This implements throwing InvalidArgumentException if that is the case.