Handle m.direct and m.receipt events

Fixes #12
Fixes #45

interface/matrix.go

@@ -35,6 +35,7 @@ type MatrixContainer interface {
 	SendMessage(roomID, msgtype, message string) (string, error)
 	SendMarkdownMessage(roomID, msgtype, message string) (string, error)
 	SendTyping(roomID string, typing bool)
+	MarkRead(roomID, eventID string)
 	JoinRoom(roomID, server string) (*rooms.Room, error)
 	LeaveRoom(roomID string) error
 

interface/ui.go

@@ -46,7 +46,7 @@ type MainView interface {
 	SetRooms(rooms map[string]*rooms.Room)
 	SaveAllHistory()
 
-	UpdateTags(room *rooms.Room, newTags []rooms.RoomTag)
+	UpdateTags(room *rooms.Room)
 
 	SetTyping(roomID string, users []string)
 	ParseEvent(roomView RoomView, evt *gomatrix.Event) Message