Generated client incorrectly encodes arrays in query string

[tve]

The generated client produces an array encoding for the query string using ',' instead of a repetition of the param. E.g., ids=1,2,3 instead of ids=1&ids=2&ids=3.

Also, the test whether a query string param is necessary should use if len(array) > 0 instead of if array != nil.

[tve]

Looks like the test may not matter as much, I think you need to produce:

if len(databags) > 0 {
  for _, e := range databags {
    values.Add("databags", e)
  }
}

[raphael]

This should be fixed, thank you!