Listing.price is a string rather than float

[Daniel Dickison]

The doc says Listing.price is a float, but it's being encoded as a JSON string instead. Bug or feature? (I can see this going either way since a string representation would avoid floating-point precision problems.)

[Justin Sheckler]

We're going to standardize on strings for float values, to avoid
precision errors. This should have been documented (we'll add a
section about data types soon.)