queries without limits returning next token

[JasonWeathersby]

curl localhost:8980/v2/accounts/XIU7HGGAJ3QOTATPDSIIHPFVKMICXKHMOR2FJKHTVLII4FAOA3CYZQDLG4/transactions?after-time=2020-06-03T10:00:00-05:00 | json_pp

[brianolson]

Improvement
It'd be nicer and more efficient if the server detected that it finished short of its limit (whether default or specified) and didn't send a next token when it can know that there's nothing after that next token.

In the current state, adding the next token to the query produces an empty result, which is a pretty clear sign of being done, but yeah it could be better.