Revert "Switch to Express, add first naive implementation of serving tracks"
Revert "Switch to Express, add first naive implementation of serving tracks"

This reverts commit 615b95901f36743f671f32b7dfdd239f2b2def35.

jsendelbach/navgauge,tkurki/navgauge,jsendelbach/navgauge,jsendelbach/navgauge,tkurki/navgauge