Includes all edges in the rtree, but adds an `is_startpoint` flag to each. Most plugin behaviour remains unchanged (non-startpoint edges aren't used as snapping candidates), but for map matching, we allow snapping to any edge. This fixes map-matching across previously non-is_startpoint edges, like ferries, private service roads, and a few others.
* Revert "Remove estimated_cells value in the response."
This reverts commit 364e35af06.
* Update changelog.
* fix linting
* adjust fallback_speed check
* change [].includes to [].indexOf !== -1 for compatibility with node 4
* change param name
* more cuke tests
* fix formatting
* add a multiplier to the matrix
* add rounding
* remove scale_factor restrictions
* clamp for overflow error
* update check to match error message
* enforce clamping on < 0 and increase test coverage
* add an invalid scale_factor value to node tests
* increase test coverage
* changelog
* fix incorrect parameter parsing for node osrm and add tests
* fix boost spirit grammar parsing for annotations
* return NotImplemented when distance annotation is requested for MLD in table plugin
* update docs
The viaroute plugin always expects a route to be there potentially
with invalid edge weight to represent no-route-found. By switching
to the many-route-result for the mld alternatives algorithm we might
return an empty many-route-result invalidating the post-condition.
We failed to check if we could actually find phantom nodes for all
coordinates in the table plugin, leading to corrupt internal state.
```
curl 'http://localhost:5000/table/v1/car/7.4151,43.7305;7.4222,43.7368?radiuses=0;'
```
```
[assert][140505627227904] /tmp/osrm-backend/include/engine/routing_algorithms/routing_base.hpp:68
in: void osrm::engine::routing_algorithms::insertNodesInHeap(osrm::engine::SearchEngineData<osrm::engine::routing_algorithms::ch::Algorithm>::ManyToManyQueryHeap&, const osrm::engine::PhantomNode&) [with bool DIRECTION = false; osrm::engine::SearchEngineData<osrm::engine::routing_algorithms::ch::Algorithm>::ManyToManyQueryHeap = osrm::util::BinaryHeap<unsigned int, unsigned int, int, osrm::engine::ManyToManyHeapData, osrm::util::UnorderedMapStorage<unsigned int, int> >]: phantom_node.IsValid()
terminate called without an active exception
```
