Tooltip

I think this is ready to be merged.

Note: that the tooltip as working only on 2 layers as of now because the backend is not ready yet for every layer that is queryable. Activate the following layers to see the tooltip:

"label": "ILNM", 
"idBod": "ch.bafu.bundesinventare-bln", 
 
"label": "Swiss game reserves", 
"idBod": "ch.bafu.bundesinventare-jagdbanngebiete", 

(labels are refering to english labels)

They can be found in 'Nature and Environment' -> 'Environmnet, Nature' -> 'Nature Protection' in the GeoCatalog (ech).

Note: in RE2, each feature has a header section. This is not here yet (we have to decide if the service provides this or if it is to be done on the client

Note: This shows how flexible popup already is by using ng-repeat in the content of the popup, which will fill automatically once the data arrives.