Fix item price rounding bug

The item prices were being multiplied by 100 then cast to an int. The problem is that PHP can't always represent the amount accurately and sometimes the figure was very slightly below the actual figure, so when you cast to an int after multiplying by 100, it simply chops off the remaining decimal part, which effectively loses 1 pence/cent.

It now rounds the figure after multiplying by 100, which fixes the problem.

First official release

v1.0.0

Include the supplied description in the payment intent, which becomes…

v0.1.0

Update readme to warn that negative- and zero-value items are filtere…

Token release

Just to create a release.