add XMPP nudge alert, displayed after making a cloud repository

Assistant/Alert.hs

@@ -34,6 +34,7 @@ data AlertName
 	| SanityCheckFixAlert
 	| WarningAlert String
 	| PairAlert String
+	| XMPPNeededAlert
 	deriving (Eq)
 
 {- The first alert is the new alert, the second is an old alert.
@@ -322,6 +323,21 @@ pairRequestAcknowledgedAlert repo button = baseActivityAlert
 	, alertButton = button
 	}
 
+xmppNeededAlert :: AlertButton -> Alert
+xmppNeededAlert button = Alert
+	{ alertHeader = Just "Keep your repositories in sync across the cloud, or share with friends."
+	, alertIcon = Just TheCloud
+	, alertPriority = High
+	, alertButton = Just button
+	, alertClosable = True
+	, alertClass = Message
+	, alertMessageRender = tenseWords
+	, alertBlockDisplay = True
+	, alertName = Just $ XMPPNeededAlert
+	, alertCombiner = Just $ dataCombiner $ \_old new -> new
+	, alertData = []
+	}
+
 fileAlert :: TenseChunk -> FilePath -> Alert
 fileAlert msg file = (activityAlert Nothing [f])
 	{ alertName = Just $ FileAlert msg