added heartbeat sound
cadenceAndGrade

added Cadence var and Grade w(for up) and s (for down)
added bike ambient sound
Merge pull request #1 from rjuste3/reuben-audio

Reuben audio
Revert "Merge pull request #1 from rjuste3/reuben-audio"

This reverts commit c855ca28ee110957a0478403d12d88c256442db7, reversing
changes made to 6e472a24a5630e681e7d512b0ca3243043a6ae5f.
Merge remote-tracking branch 'origin/master' into reuben-audio