QueryParameters.stale(.OK) returns 400 when used

[StanislavGoryachev]

When I add .stale(.OK) as query parameter I get status code 400 back.
I am using Kitura NIO

There are two things I had to do to fix it:

1 Change to lowercase ok:

/// Indicates when to update.
    public enum StaleOptions {
        /// CouchDB will not refresh the view even if it is stale.
        case ok
        /// CouchDB will update the view after the stale result is returned.
        case updateAfter
    }

instead of case OK

2: Remove \" ... \" from to string switch:

for param in params {
    switch param {
        case .conflicts (let value):
            paramString += "conflicts=\(value)&"
…
        case .stale (let value):
            paramString += "stale=\(value)&"
        case .startKey (let value):
…
    }
}

instead of paramString += "stale=\"\(value)\"&"