* Removed `minDispersion` from the `RootDistance` calculation, since the value
was arbitrary.
* Moved some validation into main code path so that invalid `TransmitTime` and
`mode` responses trigger an error even when `Response.Validate` is not
called.
Release v0.1.0
==============
This is the initial release of the `ntp` package. Currently it supports the following features:
*`Time()` to query the current time according to a remote NTP server.
*`Query()` to query multiple pieces of time-related information from a remote NTP server.
*`QueryWithOptions()`, which is like `Query()` but with the ability to override default query options.
Time-related information returned by the `Query` functions includes:
*`Time`: the time the server transmitted its response, according to the server's clock.
*`ClockOffset`: the estimated offset of the client's clock relative to the server's clock. You may apply this offset to any local system clock reading once the query is complete.
*`RTT`: an estimate of the round-trip-time delay between the client and the server.
*`Precision`: the precision of the server's clock reading.
*`Stratum`: the "stratum" level of the server, where 1 indicates a server directly connected to a reference clock, and values greater than 1 indicating the number of hops from the reference clock.
*`ReferenceID`: A unique identifier for the NTP server that was contacted.
*`ReferenceTime`: The time at which the server last updated its local clock setting.
*`RootDelay`: The server's round-trip delay to the reference clock.
*`RootDispersion`: The server's total dispersion to the referenced clock.
*`RootDistance`: An estimate of the root synchronization distance.
*`Leap`: The leap second indicator.
*`MinError`: A lower bound on the clock error between the client and the server.
*`Poll`: the maximum polling interval between successive messages on the server.
The `Response` structure returned by the `Query` functions also contains a `Response.Validate()` function that returns an error if any of the fields returned by the server are invalid.
