Params.Map in 0.10.0

[ivche]

We are upgrading our unfiltered version to 0.10.0 and we noticed that this line changed the return type of the unapply method to the internal Params.Map.

This caused some compilation problems on our side

[error]  found   : Map (in scala.collection)
[error]     (which expands to)  scala.collection.Map[String,Seq[String]]
[error]  required: Map (in scala.collection.immutable)
[error]     (which expands to)  scala.collection.immutable.Map[String,Seq[String]]
... 

which we handled but I wondered if it is an intentional change on your side or you might want to change it back?