addLayer - works like setLayers, but doesnt unselect all other layers so that selectFeature still will be working for the old layers
Revert "addLayer - works like setLayers, but doesnt unselect all other layers so that selectFeature still will be working for the old layers"

This reverts commit 45d640d3abadc91a34191d20cf93f5239a9790db.
addLayer - works like setLayers, but doesnt unselect all other layers so that selectFeature still will be working for the old layers
This depends on pull request: https://github.com/tomcollins/openlayers/commit/0a50181df09a2687d6a35305bd6d1de10f7541f8 otherwise you get problem described by:https://github.com/openlayers/openlayers/issues/958
changed parameter variable name to layer
Changed test to show that controlWithLayer.layer has changed type from OpenLayers.Layer.Vector to OpenLayers.Layer.Vector.RootContainer
Merge pull request #1287 from emoen/master

addLayer - works like setLayers, but doesnt unselect all other layers so that selectFeature still will be working for the old layers (r=@bartvde)