Re-trigger trip planning on rotation change

[vreixo]

I always thought that the trip planning being stop on rotation change, although won't be a very commons scenario as trip planning should be fast, is not the best practice. It was implemented this way because it was more simple and, as I have said, was not considered very important. So, re-reading Android documents the idea that this should be changed in the future came again, although it might not be a priority.