Merge pull request #14 from jplatte/master

Fix two bytesize bugs (wrong json key, non-optional value that should be optional)

src/presence.rs

@@ -18,7 +18,7 @@ pub struct PresenceEventContent {
     pub avatar_url: Option<String>,
 
     /// Whether or not the user is currently active.
-    pub currently_active: bool,
+    pub currently_active: Option<bool>,
 
     /// The current display name for this user.
     #[serde(skip_serializing_if="Option::is_none")]

src/receipt.rs

@@ -22,6 +22,7 @@ pub type ReceiptEventContent = HashMap<EventId, Receipts>;
 #[derive(Clone, Debug, Deserialize, Serialize)]
 pub struct Receipts {
     /// A collection of users who have sent *m.read* receipts for this event.
+    #[serde(rename="m.read")]
     pub m_read: UserReceipts,
 }