Rename render/featuresoverlay files to featureoverlay
Rename ol.render.FeaturesOverlay to ol.FeatureOverlay
goog.require in alphabetical order
Variable renaming in examples
Use featureOverlay in select interaction
Change olx.render.FeaturesOverlayOptions to olx.FeatureOverlayOptions
Fix minor typo in vector-layer example
Add failing test for change event propagation
Fix vector examples
Merge pull request #1648 from elemoine/1648

Vector examples are broken
Assert that an element is removed in ol.structs.RBush#remove_
Fix test description
Replace faulty iterative ol.structs.RBush#remove with less faulty recursive version
Return, and check, boolean value from ol.structs.RBush#remove indicating whether value was removed
Move remove from ol.structs.RBush to ol.structs.RBushNode
Icon images are handled by a separate class
Fix the kml format tests
Vector renderer uses new image style interface
Vector image source uses new image style interface
Introduce an icon image cache