Merge pull request #210 from fwitzke/master

#207 allowing disabling watchers on markers
The marker-add-example was not working, the "events" object wasn't defined.

Thanks to @fawick for reporting here:
https://github.com/tombatossals/angular-leaflet-directive/issues/212
Updated to protractor 0.14.0. Now the selenium installation is easier via webdriver-manager script
Simplified protractor e2e tests
Point the angular-leaflet library inside the exampler folder to be able to execute the protractor tests
Added a e2e tests to detect the errors on the marker-add-example, as reported by @fawick here:

https://github.com/tombatossals/angular-leaflet-directive/issues/212