enable calling of a hook for the rootnode in the doctrine bridge
fix a little overwritten method
bc break: change bridge to return the node instead of itself on persist
reorder navigation tests add Hgdrn fixture
Merge branch 'master' into navigation
add a toParentPointer method to crate the parentPointer array from flat with depth
add setChildren to Node
support correct unwrapping for this test in SimpleNode
add a toStructure algorithm which does the same as parent pointer but converts the children as a nested array
add hard dependency to testdata