bbcrd/waveform-data.js — pull request #7 by oncletom (2014-01-28 12:11:23+00:00)
Title: time -> pixel -> time is not data-safe

```js
expect(instance.time(instance.at_time(0))).to.equal(0, '0 -> 0');
expect(instance.time(instance.at_time(0.15))).to.equal(0.15, '0.15 -> 0.15');
expect(instance.time(instance.at_time(1))).to.equal(1, '1 -> 1');
```