orders can show up as 0 for amount and value

[thejollyrogers]

jared informs me this is due to rounding, but it looks really weird to have multiple orders in the order book showing up as 0. maybe we should do something like truncate in the middle of the number to avoid it going off the edge of the container, like 0.00...001? @wynlim thoughts?

[wynlim]

We should definitely have a better representation and accuracy of numbers.

[deckar01]

if(roundedAmount === '0') return 'dust';