Update AUTHORS with recent contributors

Use go module in test directory (google#1159)

Update AUTHORS with recent contributors

Use url.QueryEscape instead of url.PathEscape to escape query string (g…

…oogle#1125)

Fixes google#1122.

Bump v23 to v24

Update AUTHORS with recent contributors

Bump version to v22

Escape commit ref with percent encoding (google#1099)

Upgrade module to v21

Upgrade module to v20