Introduction of method rebuildTree() in GenericTreeBean. This method is used to refresh the tree on the left of the main page to make appear the recently added types. This method force the root node to rebuild the tree of it's children and like this make them up to date.
Method flushAndUnmount() return the same cache (and not his parent) if it's the cache of level 1.
Small refactoring of GenericImpl.
Introduse the call of method rebuildTree().
Introduce new testes.
Merge branch 'myadmin' into stable
Merge branch 'stable'