:bug: Fix date display on release day (#13)
:bug: Fix date display on release day (#13)

`Math.ceil()` returns `-0` for values between `(-1,-0]`. On release day, "-0 days" would be shown as the number of remaining days until the release is stable. Fixing it by making the number absolute, as it was already done for past releases.
GoogleChromeLabs/fugu-tracker,GoogleChromeLabs/fugu-tracker,GoogleChromeLabs/fugu-tracker