Update to latest ol3

https://github.com/openlayers/ol3/commit/70e3cb359869f041243a69f52488f86aa13ec083

Update to latest ol3 and adapt to new build system.

Tested some in google chrome. I would recommend another heavy dose of testing before merging. It has been 6 weeks since our last update.


Test [here](http://mf-geoadmin3.dev.bgdi.ch/gjn_updateol/prod/)