Merge rust-bitcoin#550: Derive Hash for Url

93c9e43 Derive `Hash` for `Url` (Elias Rohrer)

Pull request description:

  This is a nice-to-have, especially when you'd like to use a `Url` as a key in a `HashMap`.

ACKs for top commit:
  tcharding:
    ACK 93c9e43

Tree-SHA512: 46945cc5c3dde1996393a882aa6d38a4d19e899ac29100d14768a7d64f578ffb4afe9b5f95941cea714c98f37c51d2a382f25cdd4bffb15aa13af91b586f9fb8

Author: tcharding

bitreq/src/url.rs

@@ -59,7 +59,7 @@ impl std::error::Error for ParseError {}
 ///
 /// **Note:** This type currently only supports encoded URLs. IDNs or non-ASCII URLs must be
 /// properly punycoded/%-encoded prior to parsing.
-#[derive(Debug, Clone, PartialEq, Eq)]
+#[derive(Debug, Clone, Hash, PartialEq, Eq)]
 pub struct Url {
     /// The full serialized URL string.
     serialization: String,