Do not allow 't' and 'amount' parameters in the same URI

[jonas-lundqvist]

From the Telegram group:

I think the validation should produce an error if both t and amount are present in the same URI. If a token aware wallet is requesting a specific BCH amount and needs backwards compatibility that wallet should drop the t parameter since that request obviously can't contain tokens.

[bitjson]

Thanks for opening the issue! Agreed: this would almost certainly be an implementation bug, and clients should error as strictly as possible to maximize future upgrade possibilities.

Fixed in 68f0f27 🚀