[Compiler] Rounding Error for long decimals

[goatandsheep]

Because I didn't carry the rounding, numbers such as 1.99999996 will compile to 00:00:01.1 . This is extremely problematic.

[goatandsheep]

It's fixed pretty easily by changing compiler:145 from Math.round --> Math.floor. I'm just waiting on my PR to be approved

[osk]

Fixed in #22

[londonshliach]

This error was re-introduced in #36

1.99999 will now compile to 00:00:01.1000 (which makes the VTT file invalid).

See here:
https://jsfiddle.net/londonshliach/e0kpbgL3/