Osrm support

[RomainQuidet]

I just updated the directions init to really support any custom host. This allows us to use any OSRM server.

[RomainQuidet]

this is for issue #121

[RomainQuidet]

any clue why bitrise fails ? It compiles on Xcode 9.1 / swift 3.2

[bsudekum]

It looks like requests are still being made with a Mapbox access token (or it's expecting one to be there):

Selected tests
Test Suite MapboxDirectionsTests.xctest started
V4Tests
    ✗ testPolyline, XCTAssertNil failed: "Error Domain=MBDirectionsErrorDomain Code=-1 "Not Authorized - Invalid Token" UserInfo={NSLocalizedFailureReason=Not Authorized - Invalid Token}" - Error: Error Domain=MBDirectionsErrorDomain Code=-1 "Not Authorized - Invalid Token" UserInfo={NSLocalizedFailureReason=Not Authorized - Invalid Token}
    ✗ testPolyline, XCTAssertNotNil failed -
❌  fatal error: unexpectedly found nil while unwrapping an Optional value

[RomainQuidet]

Ha yes sorry I need to check the unit tests ! Thanks.

[RomainQuidet]

@bsudekum Hi, how can we move forward with this pull request ? Do I have to change something ?

[bsudekum]

Also cc @1ec5

[datwelk]

What's the status of this?