renamed and added some snippet-files

Signed-off-by: Bruno Perner <b.perner@gmx.de>
added beta treecombo-filter-option for example to filter resources in a grid by a resourcetree

Signed-off-by: Bruno Perner <b.perner@gmx.de>
added migx-2.4.1-beta1.transport.zip

Signed-off-by: Bruno Perner <b.perner@gmx.de>