filter phpcr odm tree by valid children config
Merge pull request #101 from beeldspraak/tree-filter-children

[WIP] filter children phpcr-odm tree
add documention filtering children phpcr-odm tree
Merge pull request #102 from beeldspraak/tree-filter-children

add documention filtering children phpcr-odm tree
Update render for 2.2

In symfony 2.2 rendering of controlers changed so this is a fix for that.
It should remain 2.1 compatible
Merge pull request #104 from deresh/patch-1

Update render for 2.2
cleanup CS for fix from #104