Release 1.1.0

I was going to suggest using `strings.Join` for this, but either way you've got to iterate on everything. I think the `net/url` package has a builder for this sort of thing:

```go
params := url.Values{}
for _, id := range saids {
	params.Add(id, id)
}
params.Encode()
```

Double check to make sure it doesn't replace query string parameters with the same key.