slack notifications for failure and fixed builds [skip ci]
slack notifications for failure and fixed builds [skip ci]

oxidase/node-osrm,Project-OSRM/node-osrm,Project-OSRM/node-osrm,Project-OSRM/node-osrm,KnockSoftware/node-osrm,KnockSoftware/node-osrm,oxidase/node-osrm,oxidase/node-osrm,KnockSoftware/node-osrm,KnockSoftware/node-osrm