console.log removed 
bug fixed in StateFulObject
Merge pull request #11 from IDgis/finalizing-first-CoSurveyRelease

console.log removed
Implemented setLayerIndex for the OL3 map engine.
Merge pull request #13 from IDgis/ol3-layer-order

Implemented setLayerIndex for the OL3 map engine.
bug fixed with getting dom attr with.dataset (does not work in IE<11)
added method updateSize()
Merge pull request #15 from IDgis/finalizing-first-CoSurveyRelease

Finalizing first co survey release
- Disabled box-zoom interaction in default viewer.
- Parameters of WMS-layers are updated in the OL3 engine when possible.
This prevents the entire layer from being recreated in response to a
trivial parameter change.